diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
index d024927297..1f473b87f3 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
@@ -135,10 +135,10 @@ CppType idl_type_name_to_cpp_type(Type const& type, Interface const& interface)
         return { .name = "JS::Handle<WebIDL::CallbackType>", .sequence_storage_type = SequenceStorageType::MarkedVector };
 
     if (type.is_string()) {
-        if (interface.extended_attributes.contains("UseNewAKString"))
-            return { .name = "String", .sequence_storage_type = SequenceStorageType::Vector };
+        if (interface.extended_attributes.contains("UseDeprecatedAKString"))
+            return { .name = "DeprecatedString", .sequence_storage_type = SequenceStorageType::Vector };
 
-        return { .name = "DeprecatedString", .sequence_storage_type = SequenceStorageType::Vector };
+        return { .name = "String", .sequence_storage_type = SequenceStorageType::Vector };
     }
 
     if (type.name() == "double" && !type.is_nullable())
@@ -411,8 +411,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
 
     // FIXME: Add support for optional, variadic, nullable and default values to all types
     if (parameter.type->is_string()) {
-        bool use_new_ak_string = interface.extended_attributes.contains("UseNewAKString");
-        if (!use_new_ak_string)
+        if (interface.extended_attributes.contains("UseDeprecatedAKString"))
             generate_to_deprecated_string(scoped_generator, parameter, variadic, optional, optional_default_value);
         else
             generate_to_new_string(scoped_generator, parameter, variadic, optional, optional_default_value);
@@ -811,7 +810,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
                 }
 
                 generate_to_cpp(dictionary_generator, member, member_property_value_name, "", member_value_name, interface, member.extended_attributes.contains("LegacyNullToEmptyString"), !member.required, member.default_value);
-                if (member.type->is_string() && optional && interface.extended_attributes.contains("UseNewAKString")) {
+                if (member.type->is_string() && optional && !interface.extended_attributes.contains("UseDeprecatedAKString")) {
                     dictionary_generator.append(R"~~~(
     if (@member_value_name@.has_value())
         @cpp_name@.@member_name@ = @member_value_name@.release_value();
@@ -1330,7 +1329,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
         if (includes_string) {
             // 14. If types includes a string type, then return the result of converting V to that type.
             // NOTE: Currently all string types are converted to String.
-            if (interface.extended_attributes.contains("UseNewAKString")) {
+            if (!interface.extended_attributes.contains("UseDeprecatedAKString")) {
                 union_generator.append(R"~~~(
         return TRY(@js_name@@js_suffix@.to_string(vm));
 )~~~");
@@ -1418,7 +1417,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
 )~~~");
                 } else {
                     if (optional_default_value == "\"\"") {
-                        if (!interface.extended_attributes.contains("UseNewAKString")) {
+                        if (interface.extended_attributes.contains("UseDeprecatedAKString")) {
                             union_generator.append(R"~~~(
     @union_type@ @cpp_name@ = @js_name@@js_suffix@.is_undefined() ? DeprecatedString::empty() : TRY(@js_name@@js_suffix@_to_variant(@js_name@@js_suffix@));
 )~~~");
@@ -1604,7 +1603,7 @@ static void generate_wrap_statement(SourceGenerator& generator, DeprecatedString
 
     if (type.is_nullable() && !is<UnionType>(type)) {
         if (type.is_string()) {
-            if (!interface.extended_attributes.contains("UseNewAKString")) {
+            if (interface.extended_attributes.contains("UseDeprecatedAKString")) {
                 scoped_generator.append(R"~~~(
     if (@value@.is_null()) {
         @result_expression@ JS::js_null();
@@ -1639,7 +1638,7 @@ static void generate_wrap_statement(SourceGenerator& generator, DeprecatedString
     }
 
     if (type.is_string()) {
-        if (type.is_nullable() && interface.extended_attributes.contains("UseNewAKString")) {
+        if (type.is_nullable() && !interface.extended_attributes.contains("UseDeprecatedAKString")) {
             scoped_generator.append(R"~~~(
     @result_expression@ JS::PrimitiveString::create(vm, @value@.release_value());
 )~~~");
@@ -1769,7 +1768,7 @@ static void generate_wrap_statement(SourceGenerator& generator, DeprecatedString
         // Handle Enum? values, which were null-checked above
         if (type.is_nullable())
             scoped_generator.set("value", DeprecatedString::formatted("{}.value()", value));
-        if (!interface.extended_attributes.contains("UseNewAKString")) {
+        if (interface.extended_attributes.contains("UseDeprecatedAKString")) {
             scoped_generator.append(R"~~~(
     @result_expression@ JS::PrimitiveString::create(vm, Bindings::idl_enum_to_deprecated_string(@value@));
 )~~~");
@@ -2325,7 +2324,7 @@ enum class @enum.type.name@ {
 };
 )~~~");
 
-        if (!interface.extended_attributes.contains("UseNewAKString")) {
+        if (interface.extended_attributes.contains("UseDeprecatedAKString")) {
             enum_generator.append(R"~~~(
 inline DeprecatedString idl_enum_to_deprecated_string(@enum.type.name@ value) {
     switch(value) {
@@ -2972,7 +2971,7 @@ JS_DEFINE_NATIVE_FUNCTION(@class_name@::to_string)
     auto retval = TRY(throw_dom_exception_if_needed(vm, [&] { return impl->@attribute.cpp_getter_name@(); }));
 )~~~");
         } else {
-            if (!interface.extended_attributes.contains("UseNewAKString")) {
+            if (interface.extended_attributes.contains("UseDeprecatedAKString")) {
                 stringifier_generator.append(R"~~~(
     auto retval = TRY(throw_dom_exception_if_needed(vm, [&] { return impl->to_deprecated_string(); }));
 )~~~");
diff --git a/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl
index 320e10db0e..73c336eaaa 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl
+++ b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl
@@ -1,6 +1,6 @@
 #import <CSS/CSSGroupingRule.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface CSSConditionRule : CSSGroupingRule {
     attribute CSSOMString conditionText;
 };
diff --git a/Userland/Libraries/LibWeb/CSS/CSSKeyframeRule.idl b/Userland/Libraries/LibWeb/CSS/CSSKeyframeRule.idl
index 66b8fea4b4..4cf2c131e3 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSKeyframeRule.idl
+++ b/Userland/Libraries/LibWeb/CSS/CSSKeyframeRule.idl
@@ -1,6 +1,6 @@
 #import <CSS/CSSRule.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface CSSKeyframeRule : CSSRule {
     attribute CSSOMString keyText;
     [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style;
diff --git a/Userland/Libraries/LibWeb/CSS/CSSKeyframesRule.idl b/Userland/Libraries/LibWeb/CSS/CSSKeyframesRule.idl
index e9d9634d33..2f8d3d353e 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSKeyframesRule.idl
+++ b/Userland/Libraries/LibWeb/CSS/CSSKeyframesRule.idl
@@ -1,6 +1,6 @@
 #import <CSS/CSSRule.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface CSSKeyframesRule : CSSRule {
     attribute CSSOMString name;
     readonly attribute unsigned long length;
diff --git a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl
index 725ca646bc..51a5267b06 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl
+++ b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl
@@ -1,5 +1,5 @@
 // https://drafts.csswg.org/cssom/#cssstyledeclaration
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface CSSStyleDeclaration {
 
     [CEReactions] attribute CSSOMString cssText;
diff --git a/Userland/Libraries/LibWeb/CSS/MediaList.idl b/Userland/Libraries/LibWeb/CSS/MediaList.idl
index ac74c4af56..63eb6bfc5a 100644
--- a/Userland/Libraries/LibWeb/CSS/MediaList.idl
+++ b/Userland/Libraries/LibWeb/CSS/MediaList.idl
@@ -1,4 +1,4 @@
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface MediaList {
     [LegacyNullToEmptyString] stringifier attribute CSSOMString mediaText;
     readonly attribute unsigned long length;
diff --git a/Userland/Libraries/LibWeb/CSS/MediaQueryListEvent.idl b/Userland/Libraries/LibWeb/CSS/MediaQueryListEvent.idl
index 4f8166aa5d..c1a7d361d0 100644
--- a/Userland/Libraries/LibWeb/CSS/MediaQueryListEvent.idl
+++ b/Userland/Libraries/LibWeb/CSS/MediaQueryListEvent.idl
@@ -1,7 +1,7 @@
 #import <DOM/Event.idl>
 
 // https://w3c.github.io/csswg-drafts/cssom-view-1/#mediaquerylistevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface MediaQueryListEvent : Event {
     constructor(CSSOMString type, optional MediaQueryListEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/CSS/StyleSheet.idl b/Userland/Libraries/LibWeb/CSS/StyleSheet.idl
index 5109cde785..3ccc954612 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleSheet.idl
+++ b/Userland/Libraries/LibWeb/CSS/StyleSheet.idl
@@ -3,7 +3,7 @@
 #import <DOM/Element.idl>
 
 // https://drafts.csswg.org/cssom/#stylesheet
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface StyleSheet {
 
     readonly attribute Element? ownerNode;
diff --git a/Userland/Libraries/LibWeb/Crypto/SubtleCrypto.idl b/Userland/Libraries/LibWeb/Crypto/SubtleCrypto.idl
index 588d37074c..99f867b2c6 100644
--- a/Userland/Libraries/LibWeb/Crypto/SubtleCrypto.idl
+++ b/Userland/Libraries/LibWeb/Crypto/SubtleCrypto.idl
@@ -1,4 +1,4 @@
-[SecureContext,Exposed=(Window,Worker), UseNewAKString]
+[SecureContext,Exposed=(Window,Worker)]
 interface SubtleCrypto {
     // FIXME: Add support for AlgorithmIdentifier ("typedef (object or DOMString)")
     Promise<any> digest(DOMString algorithm, BufferSource data);
diff --git a/Userland/Libraries/LibWeb/DOM/Attr.idl b/Userland/Libraries/LibWeb/DOM/Attr.idl
index 3b5993e7e0..2b2e777a22 100644
--- a/Userland/Libraries/LibWeb/DOM/Attr.idl
+++ b/Userland/Libraries/LibWeb/DOM/Attr.idl
@@ -1,7 +1,7 @@
 #import <DOM/Node.idl>
 #import <DOM/Element.idl>
 
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface Attr : Node {
     readonly attribute DOMString? namespaceURI;
     readonly attribute DOMString? prefix;
diff --git a/Userland/Libraries/LibWeb/DOM/CharacterData.idl b/Userland/Libraries/LibWeb/DOM/CharacterData.idl
index 324a9c7bb0..9af7903a4c 100644
--- a/Userland/Libraries/LibWeb/DOM/CharacterData.idl
+++ b/Userland/Libraries/LibWeb/DOM/CharacterData.idl
@@ -3,7 +3,7 @@
 #import <DOM/Node.idl>
 
 // https://dom.spec.whatwg.org/#characterdata
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface CharacterData : Node {
     [LegacyNullToEmptyString] attribute DOMString data;
     readonly attribute unsigned long length;
diff --git a/Userland/Libraries/LibWeb/DOM/Comment.idl b/Userland/Libraries/LibWeb/DOM/Comment.idl
index bb3728dbf3..39349af25b 100644
--- a/Userland/Libraries/LibWeb/DOM/Comment.idl
+++ b/Userland/Libraries/LibWeb/DOM/Comment.idl
@@ -1,7 +1,7 @@
 #import <DOM/CharacterData.idl>
 
 // https://dom.spec.whatwg.org/#comment
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface Comment : CharacterData {
     constructor(optional DOMString data = "");
 };
diff --git a/Userland/Libraries/LibWeb/DOM/CustomEvent.idl b/Userland/Libraries/LibWeb/DOM/CustomEvent.idl
index 2a70941fcf..17e69acd07 100644
--- a/Userland/Libraries/LibWeb/DOM/CustomEvent.idl
+++ b/Userland/Libraries/LibWeb/DOM/CustomEvent.idl
@@ -1,6 +1,6 @@
 #import <DOM/Event.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface CustomEvent : Event {
     constructor(DOMString type, optional CustomEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/DOM/DOMImplementation.idl b/Userland/Libraries/LibWeb/DOM/DOMImplementation.idl
index 23e24040f7..14060e83ea 100644
--- a/Userland/Libraries/LibWeb/DOM/DOMImplementation.idl
+++ b/Userland/Libraries/LibWeb/DOM/DOMImplementation.idl
@@ -1,7 +1,7 @@
 #import <DOM/Document.idl>
 
 // https://dom.spec.whatwg.org/#domimplementation
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface DOMImplementation {
 
     // FIXME: This should return XMLDocument instead of Document.
diff --git a/Userland/Libraries/LibWeb/DOM/DOMTokenList.idl b/Userland/Libraries/LibWeb/DOM/DOMTokenList.idl
index a596e107d4..9f397afff0 100644
--- a/Userland/Libraries/LibWeb/DOM/DOMTokenList.idl
+++ b/Userland/Libraries/LibWeb/DOM/DOMTokenList.idl
@@ -1,5 +1,5 @@
 // https://dom.spec.whatwg.org/#interface-domtokenlist
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface DOMTokenList {
     readonly attribute unsigned long length;
     getter DOMString? item(unsigned long index);
diff --git a/Userland/Libraries/LibWeb/DOM/Document.idl b/Userland/Libraries/LibWeb/DOM/Document.idl
index a2d285b1c4..becfc025cc 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.idl
+++ b/Userland/Libraries/LibWeb/DOM/Document.idl
@@ -23,7 +23,7 @@
 #import <Selection/Selection.idl>
 
 // https://dom.spec.whatwg.org/#document
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface Document : Node {
     constructor();
 
diff --git a/Userland/Libraries/LibWeb/DOM/DocumentFragment.idl b/Userland/Libraries/LibWeb/DOM/DocumentFragment.idl
index 297a116e5c..026f8e63ef 100644
--- a/Userland/Libraries/LibWeb/DOM/DocumentFragment.idl
+++ b/Userland/Libraries/LibWeb/DOM/DocumentFragment.idl
@@ -5,7 +5,7 @@
 #import <DOM/ParentNode.idl>
 
 // https://dom.spec.whatwg.org/#documentfragment
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface DocumentFragment : Node {
     constructor();
 
diff --git a/Userland/Libraries/LibWeb/DOM/DocumentType.idl b/Userland/Libraries/LibWeb/DOM/DocumentType.idl
index c23690f20c..7834d9d49d 100644
--- a/Userland/Libraries/LibWeb/DOM/DocumentType.idl
+++ b/Userland/Libraries/LibWeb/DOM/DocumentType.idl
@@ -2,7 +2,7 @@
 #import <DOM/Node.idl>
 
 // https://dom.spec.whatwg.org/#documenttype
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface DocumentType : Node {
     readonly attribute DOMString name;
     readonly attribute DOMString publicId;
diff --git a/Userland/Libraries/LibWeb/DOM/Element.idl b/Userland/Libraries/LibWeb/DOM/Element.idl
index 8b37157383..f86b639f9c 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.idl
+++ b/Userland/Libraries/LibWeb/DOM/Element.idl
@@ -19,7 +19,7 @@ dictionary ScrollIntoViewOptions : ScrollOptions {
 };
 
 // https://dom.spec.whatwg.org/#element
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface Element : Node {
     readonly attribute DOMString? namespaceURI;
     readonly attribute DOMString? prefix;
diff --git a/Userland/Libraries/LibWeb/DOM/Event.idl b/Userland/Libraries/LibWeb/DOM/Event.idl
index bd65a94371..ccae48396c 100644
--- a/Userland/Libraries/LibWeb/DOM/Event.idl
+++ b/Userland/Libraries/LibWeb/DOM/Event.idl
@@ -1,7 +1,7 @@
 #import <DOM/EventTarget.idl>
 
 // https://dom.spec.whatwg.org/#event
-[Exposed=*, UseNewAKString]
+[Exposed=*]
 interface Event {
 
     constructor(DOMString type, optional EventInit eventInitDict = {});
diff --git a/Userland/Libraries/LibWeb/DOM/EventTarget.idl b/Userland/Libraries/LibWeb/DOM/EventTarget.idl
index 48c82a4d41..4ac642b65f 100644
--- a/Userland/Libraries/LibWeb/DOM/EventTarget.idl
+++ b/Userland/Libraries/LibWeb/DOM/EventTarget.idl
@@ -1,7 +1,7 @@
 #import <DOM/AbortSignal.idl>
 
 // https://dom.spec.whatwg.org/#eventtarget
-[Exposed=*, UseNewAKString]
+[Exposed=*]
 interface EventTarget {
 
     constructor();
diff --git a/Userland/Libraries/LibWeb/DOM/HTMLCollection.idl b/Userland/Libraries/LibWeb/DOM/HTMLCollection.idl
index 806a3a5048..0bcf02221c 100644
--- a/Userland/Libraries/LibWeb/DOM/HTMLCollection.idl
+++ b/Userland/Libraries/LibWeb/DOM/HTMLCollection.idl
@@ -1,6 +1,6 @@
 #import <DOM/Element.idl>
 
-[Exposed=Window, LegacyUnenumerableNamedProperties, UseNewAKString]
+[Exposed=Window, LegacyUnenumerableNamedProperties]
 interface HTMLCollection {
 
     readonly attribute unsigned long length;
diff --git a/Userland/Libraries/LibWeb/DOM/HTMLFormControlsCollection.idl b/Userland/Libraries/LibWeb/DOM/HTMLFormControlsCollection.idl
index 7002b20759..64ddf2fc1d 100644
--- a/Userland/Libraries/LibWeb/DOM/HTMLFormControlsCollection.idl
+++ b/Userland/Libraries/LibWeb/DOM/HTMLFormControlsCollection.idl
@@ -1,5 +1,5 @@
 // https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#htmlformcontrolscollection
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface HTMLFormControlsCollection : HTMLCollection {
       [ImplementedAs=named_item_or_radio_node_list] getter (RadioNodeList or Element)? namedItem(DOMString name); // shadows inherited namedItem()
 };
diff --git a/Userland/Libraries/LibWeb/DOM/MutationObserver.idl b/Userland/Libraries/LibWeb/DOM/MutationObserver.idl
index 3e24042199..efa6031ea3 100644
--- a/Userland/Libraries/LibWeb/DOM/MutationObserver.idl
+++ b/Userland/Libraries/LibWeb/DOM/MutationObserver.idl
@@ -1,7 +1,7 @@
 #import <DOM/MutationRecord.idl>
 #import <DOM/Node.idl>
 
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface MutationObserver {
 
     constructor(MutationCallback callback);
diff --git a/Userland/Libraries/LibWeb/DOM/MutationRecord.idl b/Userland/Libraries/LibWeb/DOM/MutationRecord.idl
index 0914177892..8e6ccb3054 100644
--- a/Userland/Libraries/LibWeb/DOM/MutationRecord.idl
+++ b/Userland/Libraries/LibWeb/DOM/MutationRecord.idl
@@ -1,7 +1,7 @@
 #import <DOM/Node.idl>
 #import <DOM/NodeList.idl>
 
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface MutationRecord {
 
     readonly attribute DOMString type;
diff --git a/Userland/Libraries/LibWeb/DOM/NamedNodeMap.idl b/Userland/Libraries/LibWeb/DOM/NamedNodeMap.idl
index cf52b16552..2bfdadcf5d 100644
--- a/Userland/Libraries/LibWeb/DOM/NamedNodeMap.idl
+++ b/Userland/Libraries/LibWeb/DOM/NamedNodeMap.idl
@@ -1,6 +1,6 @@
 #import <DOM/Attr.idl>
 
-[Exposed=Window, LegacyUnenumerableNamedProperties]
+[Exposed=Window, LegacyUnenumerableNamedProperties, UseDeprecatedAKString]
 interface NamedNodeMap {
     readonly attribute unsigned long length;
 
diff --git a/Userland/Libraries/LibWeb/DOM/Node.idl b/Userland/Libraries/LibWeb/DOM/Node.idl
index b2f290f6c1..688c7fd7fd 100644
--- a/Userland/Libraries/LibWeb/DOM/Node.idl
+++ b/Userland/Libraries/LibWeb/DOM/Node.idl
@@ -3,7 +3,7 @@
 #import <DOM/EventTarget.idl>
 
 // https://dom.spec.whatwg.org/#node
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface Node : EventTarget {
 
     readonly attribute unsigned short nodeType;
diff --git a/Userland/Libraries/LibWeb/DOM/RadioNodeList.idl b/Userland/Libraries/LibWeb/DOM/RadioNodeList.idl
index e7b2676d27..775767d2e9 100644
--- a/Userland/Libraries/LibWeb/DOM/RadioNodeList.idl
+++ b/Userland/Libraries/LibWeb/DOM/RadioNodeList.idl
@@ -1,7 +1,7 @@
 #import <DOM/NodeList.idl>
 
 // https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#radionodelist
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface RadioNodeList : NodeList {
     attribute DOMString value;
 };
diff --git a/Userland/Libraries/LibWeb/DOM/Range.idl b/Userland/Libraries/LibWeb/DOM/Range.idl
index 677d4d3824..9ab4b3d4ab 100644
--- a/Userland/Libraries/LibWeb/DOM/Range.idl
+++ b/Userland/Libraries/LibWeb/DOM/Range.idl
@@ -2,7 +2,7 @@
 #import <DOM/AbstractRange.idl>
 #import <Geometry/DOMRect.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface Range : AbstractRange {
 
     constructor();
diff --git a/Userland/Libraries/LibWeb/DOM/ShadowRoot.idl b/Userland/Libraries/LibWeb/DOM/ShadowRoot.idl
index 3403c58bc2..325ee168fa 100644
--- a/Userland/Libraries/LibWeb/DOM/ShadowRoot.idl
+++ b/Userland/Libraries/LibWeb/DOM/ShadowRoot.idl
@@ -2,7 +2,7 @@
 #import <DOM/InnerHTML.idl>
 
 // https://dom.spec.whatwg.org/#shadowroot
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface ShadowRoot : DocumentFragment {
     readonly attribute ShadowRootMode mode;
     // FIXME: readonly attribute boolean delegatesFocus;
diff --git a/Userland/Libraries/LibWeb/DOM/Text.idl b/Userland/Libraries/LibWeb/DOM/Text.idl
index 4093e6fdac..0479e8a1f7 100644
--- a/Userland/Libraries/LibWeb/DOM/Text.idl
+++ b/Userland/Libraries/LibWeb/DOM/Text.idl
@@ -1,7 +1,7 @@
 #import <DOM/CharacterData.idl>
 
 // https://dom.spec.whatwg.org/#text
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface Text : CharacterData {
     constructor(optional DOMString data = "");
 
diff --git a/Userland/Libraries/LibWeb/Encoding/TextDecoder.idl b/Userland/Libraries/LibWeb/Encoding/TextDecoder.idl
index acded928c7..5b669c88d7 100644
--- a/Userland/Libraries/LibWeb/Encoding/TextDecoder.idl
+++ b/Userland/Libraries/LibWeb/Encoding/TextDecoder.idl
@@ -1,4 +1,4 @@
-[Exposed=(Window,Worker)]
+[Exposed=(Window,Worker), UseDeprecatedAKString]
 interface TextDecoder {
     // FIXME: 'optional TextDecoderOptions options = {}'
     constructor(optional DOMString label = "utf-8");
diff --git a/Userland/Libraries/LibWeb/Encoding/TextEncoder.idl b/Userland/Libraries/LibWeb/Encoding/TextEncoder.idl
index 676c7ce037..f2352a5628 100644
--- a/Userland/Libraries/LibWeb/Encoding/TextEncoder.idl
+++ b/Userland/Libraries/LibWeb/Encoding/TextEncoder.idl
@@ -1,4 +1,4 @@
-[Exposed=(Window,Worker)]
+[Exposed=(Window,Worker), UseDeprecatedAKString]
 interface TextEncoder {
     constructor();
 
diff --git a/Userland/Libraries/LibWeb/Fetch/Headers.idl b/Userland/Libraries/LibWeb/Fetch/Headers.idl
index 43dedffcad..a495339dd5 100644
--- a/Userland/Libraries/LibWeb/Fetch/Headers.idl
+++ b/Userland/Libraries/LibWeb/Fetch/Headers.idl
@@ -1,6 +1,6 @@
 typedef (sequence<sequence<ByteString>> or record<ByteString, ByteString>) HeadersInit;
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface Headers {
     constructor(optional HeadersInit init);
 
diff --git a/Userland/Libraries/LibWeb/Fetch/Request.idl b/Userland/Libraries/LibWeb/Fetch/Request.idl
index aae8bc4299..232d18b394 100644
--- a/Userland/Libraries/LibWeb/Fetch/Request.idl
+++ b/Userland/Libraries/LibWeb/Fetch/Request.idl
@@ -6,7 +6,7 @@
 typedef (Request or USVString) RequestInfo;
 
 // https://fetch.spec.whatwg.org/#request
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface Request {
     constructor(RequestInfo input, optional RequestInit init = {});
 
diff --git a/Userland/Libraries/LibWeb/Fetch/Response.idl b/Userland/Libraries/LibWeb/Fetch/Response.idl
index e73be7df90..467f7f18bb 100644
--- a/Userland/Libraries/LibWeb/Fetch/Response.idl
+++ b/Userland/Libraries/LibWeb/Fetch/Response.idl
@@ -2,7 +2,7 @@
 #import <Fetch/BodyInit.idl>
 #import <Fetch/Headers.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface Response {
     constructor(optional BodyInit? body = null, optional ResponseInit init = {});
 
diff --git a/Userland/Libraries/LibWeb/FileAPI/Blob.idl b/Userland/Libraries/LibWeb/FileAPI/Blob.idl
index 3369a7de94..9bfe5d8895 100644
--- a/Userland/Libraries/LibWeb/FileAPI/Blob.idl
+++ b/Userland/Libraries/LibWeb/FileAPI/Blob.idl
@@ -1,4 +1,4 @@
-[Exposed=(Window,Worker), Serializable, UseNewAKString]
+[Exposed=(Window,Worker), Serializable]
 interface Blob {
     constructor(optional sequence<BlobPart> blobParts, optional BlobPropertyBag options = {});
 
diff --git a/Userland/Libraries/LibWeb/FileAPI/File.idl b/Userland/Libraries/LibWeb/FileAPI/File.idl
index ebe197836d..4f5712fb9e 100644
--- a/Userland/Libraries/LibWeb/FileAPI/File.idl
+++ b/Userland/Libraries/LibWeb/FileAPI/File.idl
@@ -1,6 +1,6 @@
 #import <FileAPI/Blob.idl>
 
-[Exposed=(Window,Worker), Serializable, UseNewAKString]
+[Exposed=(Window,Worker), Serializable]
 interface File : Blob {
     constructor(sequence<BlobPart> fileBits, USVString fileName, optional FilePropertyBag options = {});
 
diff --git a/Userland/Libraries/LibWeb/Geometry/DOMMatrix.idl b/Userland/Libraries/LibWeb/Geometry/DOMMatrix.idl
index 0adc0e8d7d..cd72719f33 100644
--- a/Userland/Libraries/LibWeb/Geometry/DOMMatrix.idl
+++ b/Userland/Libraries/LibWeb/Geometry/DOMMatrix.idl
@@ -2,7 +2,7 @@
 
 // https://drafts.fxtf.org/geometry/#dommatrix
 // FIXME: LegacyWindowAlias currently doesn't do anything.
-[Exposed=(Window,Worker), Serializable, LegacyWindowAlias=(SVGMatrix, WebKitCSSMatrix), UseNewAKString]
+[Exposed=(Window,Worker), Serializable, LegacyWindowAlias=(SVGMatrix, WebKitCSSMatrix)]
 interface DOMMatrix : DOMMatrixReadOnly {
     constructor(optional (DOMString or sequence<unrestricted double>) init);
 
diff --git a/Userland/Libraries/LibWeb/Geometry/DOMMatrixReadOnly.idl b/Userland/Libraries/LibWeb/Geometry/DOMMatrixReadOnly.idl
index e55a48fc5f..0471e524ff 100644
--- a/Userland/Libraries/LibWeb/Geometry/DOMMatrixReadOnly.idl
+++ b/Userland/Libraries/LibWeb/Geometry/DOMMatrixReadOnly.idl
@@ -2,7 +2,7 @@
 #import <Geometry/DOMPoint.idl>
 
 // https://drafts.fxtf.org/geometry/#dommatrixreadonly
-[Exposed=(Window,Worker), Serializable, UseNewAKString]
+[Exposed=(Window,Worker), Serializable]
 interface DOMMatrixReadOnly {
     constructor(optional (DOMString or sequence<unrestricted double>) init);
 
diff --git a/Userland/Libraries/LibWeb/HTML/CanvasGradient.idl b/Userland/Libraries/LibWeb/HTML/CanvasGradient.idl
index c76ed30e01..3f02a84c26 100644
--- a/Userland/Libraries/LibWeb/HTML/CanvasGradient.idl
+++ b/Userland/Libraries/LibWeb/HTML/CanvasGradient.idl
@@ -1,4 +1,4 @@
-[Exposed=(Window,Worker)]
+[Exposed=(Window,Worker), UseDeprecatedAKString]
 interface CanvasGradient {
     // opaque object
     undefined addColorStop(double offset, DOMString color);
diff --git a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl
index 73d03efb45..588d0bf5f0 100644
--- a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl
+++ b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl
@@ -20,7 +20,7 @@ enum CanvasTextAlign { "start", "end", "left", "right", "center" };
 enum CanvasTextBaseline { "top", "hanging", "middle", "alphabetic", "ideographic", "bottom" };
 
 // https://html.spec.whatwg.org/multipage/canvas.html#canvasrenderingcontext2d
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface CanvasRenderingContext2D {
     [ImplementedAs=canvas_for_binding] readonly attribute HTMLCanvasElement canvas;
 };
diff --git a/Userland/Libraries/LibWeb/HTML/CloseEvent.idl b/Userland/Libraries/LibWeb/HTML/CloseEvent.idl
index 71f30a3ca8..389486f3ab 100644
--- a/Userland/Libraries/LibWeb/HTML/CloseEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/CloseEvent.idl
@@ -1,6 +1,6 @@
 #import <DOM/Event.idl>
 
-[Exposed=*, UseNewAKString]
+[Exposed=*]
 interface CloseEvent : Event {
     constructor(DOMString type, optional CloseEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.idl b/Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.idl
index d4e8ade4ce..e18a847619 100644
--- a/Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.idl
+++ b/Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.idl
@@ -1,6 +1,6 @@
 #import <DOM/Node.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface CustomElementRegistry {
     [CEReactions] undefined define(DOMString name, CustomElementConstructor constructor, optional ElementDefinitionOptions options = {});
     (CustomElementConstructor or undefined) get(DOMString name);
diff --git a/Userland/Libraries/LibWeb/HTML/DOMParser.idl b/Userland/Libraries/LibWeb/HTML/DOMParser.idl
index bfe112d109..964d89ffb4 100644
--- a/Userland/Libraries/LibWeb/HTML/DOMParser.idl
+++ b/Userland/Libraries/LibWeb/HTML/DOMParser.idl
@@ -9,7 +9,7 @@ enum DOMParserSupportedType {
 };
 
 // https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparser
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface DOMParser {
     constructor();
 
diff --git a/Userland/Libraries/LibWeb/HTML/ErrorEvent.idl b/Userland/Libraries/LibWeb/HTML/ErrorEvent.idl
index b7285b0aac..2f8912dffb 100644
--- a/Userland/Libraries/LibWeb/HTML/ErrorEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/ErrorEvent.idl
@@ -1,6 +1,6 @@
 #import <DOM/Event.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface ErrorEvent : Event {
     constructor(DOMString type, optional ErrorEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/FormDataEvent.idl b/Userland/Libraries/LibWeb/HTML/FormDataEvent.idl
index d21e8116d3..3b198d7658 100644
--- a/Userland/Libraries/LibWeb/HTML/FormDataEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/FormDataEvent.idl
@@ -2,7 +2,7 @@
 #import <XHR/FormData.idl>
 
 // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-formdataevent-interface
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface FormDataEvent : Event {
     constructor(DOMString type, FormDataEventInit eventInitDict);
 
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.idl
index f9f269173b..0ede1cc10c 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLHyperlinkElementUtils.idl>
 
 // https://html.spec.whatwg.org/multipage/text-level-semantics.html#htmlanchorelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLAnchorElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLAreaElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLAreaElement.idl
index df8a755d77..4cdd4b53de 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLAreaElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLAreaElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLHyperlinkElementUtils.idl>
 
 // https://html.spec.whatwg.org/multipage/image-maps.html#htmlareaelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLAreaElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLBRElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLBRElement.idl
index f4b1a5bee4..24109bc6f3 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLBRElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLBRElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlbrelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLBRElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLBaseElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLBaseElement.idl
index fe82387616..8a9b26d594 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLBaseElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLBaseElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlbaseelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLBaseElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLBodyElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLBodyElement.idl
index 47ae014d18..afb867caad 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLBodyElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLBodyElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/sections.html#htmlbodyelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLBodyElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLButtonElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLButtonElement.idl
index 6e58725ed6..952deaa442 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLButtonElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLButtonElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlbuttonelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLButtonElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.idl
index 6ea01e08fd..485d778063 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.idl
@@ -5,7 +5,7 @@
 typedef (CanvasRenderingContext2D or WebGLRenderingContext) RenderingContext;
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlcanvaselement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLCanvasElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLDataElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLDataElement.idl
index 707351f8c7..a148b50d1b 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLDataElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLDataElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmldataelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLDataElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLDivElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLDivElement.idl
index 69e56031f4..a264a4e53a 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLDivElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLDivElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmldivelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLDivElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLElement.idl
index 52fc46dd64..2e2e1d141a 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLElement.idl
@@ -3,7 +3,7 @@
 #import <DOM/EventHandler.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLElement : Element {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLEmbedElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLEmbedElement.idl
index 2cf3c34c1b..109bfe001e 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLEmbedElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLEmbedElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlembedelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLEmbedElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLFontElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLFontElement.idl
index 9121dd32b3..b778b671a9 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLFontElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLFontElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlfontelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLFontElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLFormElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLFormElement.idl
index 30b95985e9..a7c23f06ea 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLFormElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLFormElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlformelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLFormElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLFrameElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLFrameElement.idl
index 89c4e229c5..8290bbf894 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLFrameElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLFrameElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlframeelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLFrameElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLFrameSetElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLFrameSetElement.idl
index 9e984482af..10160ae86b 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLFrameSetElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLFrameSetElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlframesetelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLFrameSetElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLHRElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLHRElement.idl
index 172e7a31a4..cb08c8b5dd 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLHRElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLHRElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/grouping-content.html#htmlhrelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLHRElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLHeadingElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLHeadingElement.idl
index d1df2dcca2..605d0242ea 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLHeadingElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLHeadingElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlheadingelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLHeadingElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLHtmlElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLHtmlElement.idl
index 8c27c495ae..c09ac5cece 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLHtmlElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLHtmlElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlhtmlelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLHtmlElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.idl
index bff188e026..cd86fd3439 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.idl
@@ -2,7 +2,7 @@
 #import <DOM/Document.idl>
 
 // https://html.spec.whatwg.org/multipage/iframe-embed-object.html#htmliframeelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLIFrameElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLImageElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLImageElement.idl
index 4304041b62..f81f4a08b7 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLImageElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLImageElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/embedded-content.html#htmlimageelement
-[Exposed=Window, LegacyFactoryFunction=Image(optional unsigned long width, optional unsigned long height)]
+[Exposed=Window, LegacyFactoryFunction=Image(optional unsigned long width, optional unsigned long height), UseDeprecatedAKString]
 interface HTMLImageElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLInputElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLInputElement.idl
index 767ba66aa4..01394a21ea 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLInputElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLInputElement.idl
@@ -3,7 +3,7 @@
 #import <FileAPI/FileList.idl>
 
 // https://html.spec.whatwg.org/multipage/input.html#htmlinputelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLInputElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLLIElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLLIElement.idl
index 791e297972..e652f9fb7e 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLLIElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLLIElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/grouping-content.html#htmllielement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLLIElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLLabelElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLLabelElement.idl
index 002ecee32c..68a98cb7c4 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLLabelElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLLabelElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/forms.html#htmllabelelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLLabelElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLLegendElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLLegendElement.idl
index 506853c9d9..cb74b3f0aa 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLLegendElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLLegendElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/form-elements.html#htmllegendelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLLegendElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLLinkElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLLinkElement.idl
index f503297d1d..8d07677ed9 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLLinkElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLLinkElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmllinkelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLLinkElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMapElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLMapElement.idl
index 79da6e07ee..70a18a3562 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMapElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMapElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/image-maps.html#htmlmapelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLMapElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMarqueeElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLMarqueeElement.idl
index b9fd06c474..40a0aae52d 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMarqueeElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMarqueeElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/obsolete.html#htmlmarqueeelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLMarqueeElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.idl
index 8f3a869c11..0aea96b7d4 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.idl
@@ -11,7 +11,7 @@ enum CanPlayTypeResult {
 };
 
 // https://html.spec.whatwg.org/multipage/media.html#htmlmediaelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLMediaElement : HTMLElement {
 
     // error state
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMetaElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLMetaElement.idl
index 35bffbd246..9845d869be 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMetaElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMetaElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlmetaelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLMetaElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLModElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLModElement.idl
index b3312f432b..69b406f995 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLModElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLModElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/edits.html#htmlmodelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLModElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLOListElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLOListElement.idl
index 61f70ae431..6d1bfa1923 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLOListElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLOListElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/grouping-content.html#htmlolistelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLOListElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLObjectElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLObjectElement.idl
index 1e40ca5329..f939945e89 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLObjectElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLObjectElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/iframe-embed-object.html#htmlobjectelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLObjectElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLOptGroupElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLOptGroupElement.idl
index 04b5872904..ecf52ac927 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLOptGroupElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLOptGroupElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/form-elements.html#htmloptgroupelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLOptGroupElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.idl
index b1807007ac..eb614b324c 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/form-elements.html#htmloptionelement
-[Exposed=Window,  LegacyFactoryFunction=Option(optional DOMString text = "", optional DOMString value, optional boolean defaultSelected = false, optional boolean selected = false)]
+[Exposed=Window,  LegacyFactoryFunction=Option(optional DOMString text = "", optional DOMString value, optional boolean defaultSelected = false, optional boolean selected = false), UseDeprecatedAKString]
 interface HTMLOptionElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLParagraphElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLParagraphElement.idl
index 0ca919f2e9..eba322cd99 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLParagraphElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLParagraphElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlparagraphelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLParagraphElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLParamElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLParamElement.idl
index 3623c58f08..629be0afc1 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLParamElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLParamElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/obsolete.html#htmlparamelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLParamElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLQuoteElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLQuoteElement.idl
index 623f73d3cd..77638027a6 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLQuoteElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLQuoteElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/grouping-content.html#htmlquoteelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLQuoteElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.idl
index f4f4449bde..4887c79340 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/scripting.html#htmlscriptelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLScriptElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLSelectElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLSelectElement.idl
index a4ad55ff67..d57ca829c1 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLSelectElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLSelectElement.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLOptionsCollection.idl>
 
 // https://html.spec.whatwg.org/multipage/form-elements.html#htmlselectelement
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface HTMLSelectElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLSlotElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLSlotElement.idl
index 64cb999bd8..d34e5eced4 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLSlotElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLSlotElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/scripting.html#htmlslotelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLSlotElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLSourceElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLSourceElement.idl
index 49aeb6d57a..e918b5e313 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLSourceElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLSourceElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/embedded-content.html#htmlsourceelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLSourceElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLStyleElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLStyleElement.idl
index 600459b4dd..ad1031e6c4 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLStyleElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLStyleElement.idl
@@ -3,7 +3,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/semantics.html#htmlstyleelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLStyleElement : HTMLElement {
     [HTMLConstructor] constructor();
 
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableCaptionElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTableCaptionElement.idl
index b0413d9dae..e577bdd819 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableCaptionElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableCaptionElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/tables.html#htmltablecaptionelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTableCaptionElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.idl
index d9fddd3bbb..6357509ffe 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/tables.html#htmltablecellelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTableCellElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableColElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTableColElement.idl
index b84f50403b..89ebfd45a1 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableColElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableColElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/tables.html#htmltablecolelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTableColElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTableElement.idl
index d6a2b1c8e1..4f4b8a94db 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableElement.idl
@@ -5,7 +5,7 @@
 #import <DOM/HTMLCollection.idl>
 
 // https://html.spec.whatwg.org/multipage/tables.html#htmltableelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTableElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.idl
index 9a35671b75..6ca81df31b 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.idl
@@ -3,7 +3,7 @@
 #import <HTML/HTMLTableCellElement.idl>
 
 // https://html.spec.whatwg.org/multipage/tables.html#htmltablerowelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTableRowElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.idl
index d1ff615f05..b1dcc6911e 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.idl
@@ -3,7 +3,7 @@
 #import <HTML/HTMLTableRowElement.idl>
 
 // https://html.spec.whatwg.org/multipage/tables.html#htmltablesectionelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTableSectionElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.idl
index 2ade76aaca..65e13d5844 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/form-elements.html#htmltextareaelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTextAreaElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTimeElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTimeElement.idl
index 76da859ad9..25716bfe6a 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTimeElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTimeElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/text-level-semantics.html#htmltimeelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTimeElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTrackElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLTrackElement.idl
index f4ff0df664..76b34bdaf4 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTrackElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTrackElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/media.html#htmltrackelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLTrackElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLUListElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLUListElement.idl
index 207ffc08d7..d3963751c5 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLUListElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLUListElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/grouping-content.html#htmlulistelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLUListElement : HTMLElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLVideoElement.idl b/Userland/Libraries/LibWeb/HTML/HTMLVideoElement.idl
index 4e270ba3bf..75303c1e6e 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLVideoElement.idl
+++ b/Userland/Libraries/LibWeb/HTML/HTMLVideoElement.idl
@@ -1,7 +1,7 @@
 #import <HTML/HTMLMediaElement.idl>
 
 // https://html.spec.whatwg.org/multipage/media.html#htmlvideoelement
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface HTMLVideoElement : HTMLMediaElement {
 
     [HTMLConstructor] constructor();
diff --git a/Userland/Libraries/LibWeb/HTML/History.idl b/Userland/Libraries/LibWeb/HTML/History.idl
index 4c52847103..000655737d 100644
--- a/Userland/Libraries/LibWeb/HTML/History.idl
+++ b/Userland/Libraries/LibWeb/HTML/History.idl
@@ -1,5 +1,5 @@
 // https://html.spec.whatwg.org/multipage/history.html#the-history-interface
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface History {
     readonly attribute unsigned long length;
     // FIXME: attribute ScrollRestoration scrollRestoration;
diff --git a/Userland/Libraries/LibWeb/HTML/Location.idl b/Userland/Libraries/LibWeb/HTML/Location.idl
index 752ff5f18a..aa377143d5 100644
--- a/Userland/Libraries/LibWeb/HTML/Location.idl
+++ b/Userland/Libraries/LibWeb/HTML/Location.idl
@@ -1,5 +1,5 @@
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#location
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface Location { // but see also additional creation steps and overridden internal methods
     [LegacyUnforgeable] stringifier attribute USVString href;
     [LegacyUnforgeable] readonly attribute USVString origin;
diff --git a/Userland/Libraries/LibWeb/HTML/MessageEvent.idl b/Userland/Libraries/LibWeb/HTML/MessageEvent.idl
index 443635b5da..f394f7b6d2 100644
--- a/Userland/Libraries/LibWeb/HTML/MessageEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/MessageEvent.idl
@@ -1,7 +1,7 @@
 #import <DOM/Event.idl>
 
 // https://html.spec.whatwg.org/multipage/comms.html#messageevent
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface MessageEvent : Event {
     constructor(DOMString type, optional MessageEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/MimeType.idl b/Userland/Libraries/LibWeb/HTML/MimeType.idl
index f5c4b26ccc..38dd948a7d 100644
--- a/Userland/Libraries/LibWeb/HTML/MimeType.idl
+++ b/Userland/Libraries/LibWeb/HTML/MimeType.idl
@@ -1,6 +1,6 @@
 #import <HTML/Plugin.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface MimeType {
     readonly attribute DOMString type;
     readonly attribute DOMString description;
diff --git a/Userland/Libraries/LibWeb/HTML/MimeTypeArray.idl b/Userland/Libraries/LibWeb/HTML/MimeTypeArray.idl
index 80a5149ecb..d286caaf16 100644
--- a/Userland/Libraries/LibWeb/HTML/MimeTypeArray.idl
+++ b/Userland/Libraries/LibWeb/HTML/MimeTypeArray.idl
@@ -1,6 +1,6 @@
 #import <HTML/MimeType.idl>
 
-[Exposed=Window, LegacyUnenumerableNamedProperties, UseNewAKString]
+[Exposed=Window, LegacyUnenumerableNamedProperties]
 interface MimeTypeArray {
     readonly attribute unsigned long length;
     getter MimeType? item(unsigned long index);
diff --git a/Userland/Libraries/LibWeb/HTML/NavigateEvent.idl b/Userland/Libraries/LibWeb/HTML/NavigateEvent.idl
index 85d925bdad..27c30fd41f 100644
--- a/Userland/Libraries/LibWeb/HTML/NavigateEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/NavigateEvent.idl
@@ -5,7 +5,7 @@
 #import <XHR/FormData.idl>
 
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-navigateevent-interface
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface NavigateEvent : Event {
   constructor(DOMString type, NavigateEventInit eventInitDict);
 
diff --git a/Userland/Libraries/LibWeb/HTML/Navigation.idl b/Userland/Libraries/LibWeb/HTML/Navigation.idl
index 0b7fba4767..8574514b96 100644
--- a/Userland/Libraries/LibWeb/HTML/Navigation.idl
+++ b/Userland/Libraries/LibWeb/HTML/Navigation.idl
@@ -4,7 +4,7 @@
 #import <HTML/NavigationTransition.idl>
 
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#navigation-interface
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface Navigation : EventTarget {
   sequence<NavigationHistoryEntry> entries();
   readonly attribute NavigationHistoryEntry? currentEntry;
diff --git a/Userland/Libraries/LibWeb/HTML/NavigationCurrentEntryChangeEvent.idl b/Userland/Libraries/LibWeb/HTML/NavigationCurrentEntryChangeEvent.idl
index a663c52c5d..48f7f131f1 100644
--- a/Userland/Libraries/LibWeb/HTML/NavigationCurrentEntryChangeEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/NavigationCurrentEntryChangeEvent.idl
@@ -3,7 +3,7 @@
 #import <HTML/NavigationType.idl>
 
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-navigationcurrententrychangeevent-interface
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface NavigationCurrentEntryChangeEvent : Event {
   constructor(DOMString type, NavigationCurrentEntryChangeEventInit eventInitDict);
 
diff --git a/Userland/Libraries/LibWeb/HTML/NavigationDestination.idl b/Userland/Libraries/LibWeb/HTML/NavigationDestination.idl
index 55223472ad..4b1dba2c53 100644
--- a/Userland/Libraries/LibWeb/HTML/NavigationDestination.idl
+++ b/Userland/Libraries/LibWeb/HTML/NavigationDestination.idl
@@ -1,5 +1,5 @@
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-navigationdestination-interface
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface NavigationDestination {
   readonly attribute USVString url;
   readonly attribute DOMString key;
diff --git a/Userland/Libraries/LibWeb/HTML/NavigationHistoryEntry.idl b/Userland/Libraries/LibWeb/HTML/NavigationHistoryEntry.idl
index 5abfb02c67..da26b96445 100644
--- a/Userland/Libraries/LibWeb/HTML/NavigationHistoryEntry.idl
+++ b/Userland/Libraries/LibWeb/HTML/NavigationHistoryEntry.idl
@@ -2,7 +2,7 @@
 #import <DOM/EventTarget.idl>
 
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#navigationtype
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface NavigationHistoryEntry : EventTarget {
   readonly attribute USVString? url;
   readonly attribute DOMString key;
diff --git a/Userland/Libraries/LibWeb/HTML/NavigationTransition.idl b/Userland/Libraries/LibWeb/HTML/NavigationTransition.idl
index 04cb6d5668..8d945ea74e 100644
--- a/Userland/Libraries/LibWeb/HTML/NavigationTransition.idl
+++ b/Userland/Libraries/LibWeb/HTML/NavigationTransition.idl
@@ -1,7 +1,7 @@
 #import <HTML/NavigationType.idl>
 #import <HTML/NavigationHistoryEntry.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface NavigationTransition {
   readonly attribute NavigationType navigationType;
   readonly attribute NavigationHistoryEntry from;
diff --git a/Userland/Libraries/LibWeb/HTML/PageTransitionEvent.idl b/Userland/Libraries/LibWeb/HTML/PageTransitionEvent.idl
index b1f1ad56e5..aba0f79320 100644
--- a/Userland/Libraries/LibWeb/HTML/PageTransitionEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/PageTransitionEvent.idl
@@ -1,7 +1,7 @@
 #import <DOM/Event.idl>
 
 // https://html.spec.whatwg.org/multipage/browsing-the-web.html#pagetransitionevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface PageTransitionEvent : Event {
     constructor(DOMString type, optional PageTransitionEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/Path2D.idl b/Userland/Libraries/LibWeb/HTML/Path2D.idl
index a31a62ad97..8879e34018 100644
--- a/Userland/Libraries/LibWeb/HTML/Path2D.idl
+++ b/Userland/Libraries/LibWeb/HTML/Path2D.idl
@@ -2,7 +2,7 @@
 #import <HTML/Canvas/CanvasPath.idl>
 
 // https://html.spec.whatwg.org/multipage/canvas.html#path2d
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface Path2D {
     constructor(optional (Path2D or DOMString) path);
 
diff --git a/Userland/Libraries/LibWeb/HTML/Plugin.idl b/Userland/Libraries/LibWeb/HTML/Plugin.idl
index b3d1591736..3f07997ab5 100644
--- a/Userland/Libraries/LibWeb/HTML/Plugin.idl
+++ b/Userland/Libraries/LibWeb/HTML/Plugin.idl
@@ -1,6 +1,6 @@
 #import <HTML/MimeType.idl>
 
-[Exposed=Window, LegacyUnenumerableNamedProperties, UseNewAKString]
+[Exposed=Window, LegacyUnenumerableNamedProperties]
 interface Plugin {
     readonly attribute DOMString name;
     readonly attribute DOMString description;
diff --git a/Userland/Libraries/LibWeb/HTML/PluginArray.idl b/Userland/Libraries/LibWeb/HTML/PluginArray.idl
index 064ba80601..a6dcaa1660 100644
--- a/Userland/Libraries/LibWeb/HTML/PluginArray.idl
+++ b/Userland/Libraries/LibWeb/HTML/PluginArray.idl
@@ -1,6 +1,6 @@
 #import <HTML/Plugin.idl>
 
-[Exposed=Window, LegacyUnenumerableNamedProperties, UseNewAKString]
+[Exposed=Window, LegacyUnenumerableNamedProperties]
 interface PluginArray {
     undefined refresh();
     readonly attribute unsigned long length;
diff --git a/Userland/Libraries/LibWeb/HTML/PromiseRejectionEvent.idl b/Userland/Libraries/LibWeb/HTML/PromiseRejectionEvent.idl
index 4785ca22b1..44438306a4 100644
--- a/Userland/Libraries/LibWeb/HTML/PromiseRejectionEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/PromiseRejectionEvent.idl
@@ -1,6 +1,6 @@
 #import <DOM/Event.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface PromiseRejectionEvent : Event {
     constructor(DOMString type, PromiseRejectionEventInit eventInitDict);
 
diff --git a/Userland/Libraries/LibWeb/HTML/Storage.idl b/Userland/Libraries/LibWeb/HTML/Storage.idl
index 8794f8edee..4c1005e17a 100644
--- a/Userland/Libraries/LibWeb/HTML/Storage.idl
+++ b/Userland/Libraries/LibWeb/HTML/Storage.idl
@@ -1,4 +1,4 @@
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface Storage {
 
     readonly attribute unsigned long length;
diff --git a/Userland/Libraries/LibWeb/HTML/SubmitEvent.idl b/Userland/Libraries/LibWeb/HTML/SubmitEvent.idl
index 83a47e8667..e408c3d74f 100644
--- a/Userland/Libraries/LibWeb/HTML/SubmitEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/SubmitEvent.idl
@@ -2,7 +2,7 @@
 #import <HTML/HTMLElement.idl>
 
 // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#submitevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface SubmitEvent : Event {
     constructor(DOMString type, optional SubmitEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/TrackEvent.idl b/Userland/Libraries/LibWeb/HTML/TrackEvent.idl
index 41d45b2628..6433d697c9 100644
--- a/Userland/Libraries/LibWeb/HTML/TrackEvent.idl
+++ b/Userland/Libraries/LibWeb/HTML/TrackEvent.idl
@@ -3,7 +3,7 @@
 #import <HTML/VideoTrack.idl>
 
 // https://html.spec.whatwg.org/multipage/media.html#trackevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface TrackEvent : Event {
     constructor(DOMString type, optional TrackEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/Window.idl b/Userland/Libraries/LibWeb/HTML/Window.idl
index 5fad9dd00b..3ddccfadfe 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.idl
+++ b/Userland/Libraries/LibWeb/HTML/Window.idl
@@ -16,7 +16,7 @@
 #import <RequestIdleCallback/IdleRequest.idl>
 
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#window
-[Global=Window, Exposed=Window, LegacyUnenumerableNamedProperties, UseNewAKString]
+[Global=Window, Exposed=Window, LegacyUnenumerableNamedProperties]
 interface Window : EventTarget {
     // the current browsing context
     [LegacyUnforgeable] readonly attribute WindowProxy window;
diff --git a/Userland/Libraries/LibWeb/HTML/Worker.idl b/Userland/Libraries/LibWeb/HTML/Worker.idl
index a3e4eafb48..4f92053381 100644
--- a/Userland/Libraries/LibWeb/HTML/Worker.idl
+++ b/Userland/Libraries/LibWeb/HTML/Worker.idl
@@ -1,7 +1,7 @@
 #import <DOM/EventTarget.idl>
 #import <DOM/EventHandler.idl>
 
-[Exposed=(Window), UseNewAKString]
+[Exposed=(Window)]
 interface Worker : EventTarget {
     constructor(DOMString scriptURL, optional WorkerOptions options = {});
 
diff --git a/Userland/Libraries/LibWeb/HTML/WorkerGlobalScope.idl b/Userland/Libraries/LibWeb/HTML/WorkerGlobalScope.idl
index 94ea0f9dd7..a595badd04 100644
--- a/Userland/Libraries/LibWeb/HTML/WorkerGlobalScope.idl
+++ b/Userland/Libraries/LibWeb/HTML/WorkerGlobalScope.idl
@@ -5,7 +5,7 @@
 #import <HTML/WorkerNavigator.idl>
 
 // https://html.spec.whatwg.org/multipage/workers.html#workerglobalscope
-[Exposed=Worker, UseNewAKString]
+[Exposed=Worker]
 interface WorkerGlobalScope : EventTarget {
     readonly attribute WorkerGlobalScope self;
     readonly attribute WorkerLocation location;
diff --git a/Userland/Libraries/LibWeb/HTML/WorkerLocation.idl b/Userland/Libraries/LibWeb/HTML/WorkerLocation.idl
index 8e05fd0bf8..464ca0c321 100644
--- a/Userland/Libraries/LibWeb/HTML/WorkerLocation.idl
+++ b/Userland/Libraries/LibWeb/HTML/WorkerLocation.idl
@@ -1,4 +1,4 @@
-[Exposed=Worker, UseNewAKString]
+[Exposed=Worker]
 interface WorkerLocation {
     stringifier readonly attribute USVString href;
     readonly attribute USVString origin;
diff --git a/Userland/Libraries/LibWeb/HighResolutionTime/Performance.idl b/Userland/Libraries/LibWeb/HighResolutionTime/Performance.idl
index 44c3b8946f..c269172f31 100644
--- a/Userland/Libraries/LibWeb/HighResolutionTime/Performance.idl
+++ b/Userland/Libraries/LibWeb/HighResolutionTime/Performance.idl
@@ -9,7 +9,7 @@
 typedef sequence<PerformanceEntry> PerformanceEntryList;
 
 // https://w3c.github.io/hr-time/#sec-performance
-[Exposed=(Window, Worker), UseNewAKString]
+[Exposed=(Window, Worker)]
 interface Performance : EventTarget {
     DOMHighResTimeStamp now();
     readonly attribute DOMHighResTimeStamp timeOrigin;
diff --git a/Userland/Libraries/LibWeb/IntersectionObserver/IntersectionObserver.idl b/Userland/Libraries/LibWeb/IntersectionObserver/IntersectionObserver.idl
index 8e60ee5c5b..90c0ed6ee5 100644
--- a/Userland/Libraries/LibWeb/IntersectionObserver/IntersectionObserver.idl
+++ b/Userland/Libraries/LibWeb/IntersectionObserver/IntersectionObserver.idl
@@ -5,7 +5,7 @@
 
 callback IntersectionObserverCallback = undefined (sequence<IntersectionObserverEntry> entries, IntersectionObserver observer);
 
-[Exposed=(Window), UseNewAKString]
+[Exposed=(Window)]
 interface IntersectionObserver {
     constructor(IntersectionObserverCallback callback, optional IntersectionObserverInit options = {});
     readonly attribute (Element or Document)? root;
diff --git a/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceEntry.idl b/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceEntry.idl
index d612550ce6..6628823a22 100644
--- a/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceEntry.idl
+++ b/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceEntry.idl
@@ -1,7 +1,7 @@
 #import <HighResolutionTime/DOMHighResTimeStamp.idl>
 
 // https://www.w3.org/TR/performance-timeline/#dom-performanceentry
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface PerformanceEntry {
     readonly attribute DOMString name;
     readonly attribute DOMString entryType;
diff --git a/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserver.idl b/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserver.idl
index 1ccb4df078..9656deb643 100644
--- a/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserver.idl
+++ b/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserver.idl
@@ -15,7 +15,7 @@ dictionary PerformanceObserverInit {
 };
 
 // https://w3c.github.io/performance-timeline/#dom-performanceobserver
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface PerformanceObserver {
     constructor(PerformanceObserverCallback callback);
     undefined observe(optional PerformanceObserverInit options = {});
diff --git a/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserverEntryList.idl b/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserverEntryList.idl
index 772b26ccf7..c91ed5ad59 100644
--- a/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserverEntryList.idl
+++ b/Userland/Libraries/LibWeb/PerformanceTimeline/PerformanceObserverEntryList.idl
@@ -1,7 +1,7 @@
 #import <HighResolutionTime/Performance.idl>
 
 // https://w3c.github.io/performance-timeline/#performanceobserverentrylist-interface
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface PerformanceObserverEntryList {
     PerformanceEntryList getEntries();
     PerformanceEntryList getEntriesByType(DOMString type);
diff --git a/Userland/Libraries/LibWeb/SVG/SVGStyleElement.idl b/Userland/Libraries/LibWeb/SVG/SVGStyleElement.idl
index b1fcd5f7ba..14d5d839fd 100644
--- a/Userland/Libraries/LibWeb/SVG/SVGStyleElement.idl
+++ b/Userland/Libraries/LibWeb/SVG/SVGStyleElement.idl
@@ -1,7 +1,7 @@
 #import <CSS/LinkStyle.idl>
 #import <SVG/SVGElement.idl>
 
-[Exposed=Window]
+[Exposed=Window, UseDeprecatedAKString]
 interface SVGStyleElement : SVGElement {
   [Reflect] attribute DOMString type;
   [Reflect] attribute DOMString media;
diff --git a/Userland/Libraries/LibWeb/Selection/Selection.idl b/Userland/Libraries/LibWeb/Selection/Selection.idl
index 341a1f9a94..c783f029ce 100644
--- a/Userland/Libraries/LibWeb/Selection/Selection.idl
+++ b/Userland/Libraries/LibWeb/Selection/Selection.idl
@@ -1,7 +1,7 @@
 #import <DOM/Node.idl>
 #import <DOM/Range.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface Selection {
 
     readonly attribute Node? anchorNode;
diff --git a/Userland/Libraries/LibWeb/UIEvents/FocusEvent.idl b/Userland/Libraries/LibWeb/UIEvents/FocusEvent.idl
index 945a03006f..1cba0af8fd 100644
--- a/Userland/Libraries/LibWeb/UIEvents/FocusEvent.idl
+++ b/Userland/Libraries/LibWeb/UIEvents/FocusEvent.idl
@@ -1,6 +1,6 @@
 #import <UIEvents/UIEvent.idl>
 
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface FocusEvent : UIEvent {
 
     constructor(DOMString type, optional FocusEventInit eventInitDict = {});
diff --git a/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.idl b/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.idl
index 7bdcf5a129..eb540336e7 100644
--- a/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.idl
+++ b/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.idl
@@ -1,7 +1,7 @@
 #import <UIEvents/EventModifier.idl>
 
 // https://www.w3.org/TR/uievents/#idl-keyboardevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface KeyboardEvent : UIEvent {
 
     constructor(DOMString type, optional KeyboardEventInit eventInitDict = {});
diff --git a/Userland/Libraries/LibWeb/UIEvents/MouseEvent.idl b/Userland/Libraries/LibWeb/UIEvents/MouseEvent.idl
index 64cb0f700f..68d3a346d0 100644
--- a/Userland/Libraries/LibWeb/UIEvents/MouseEvent.idl
+++ b/Userland/Libraries/LibWeb/UIEvents/MouseEvent.idl
@@ -1,5 +1,5 @@
 // https://w3c.github.io/uievents/#mouseevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface MouseEvent : UIEvent {
 
     readonly attribute double offsetX;
diff --git a/Userland/Libraries/LibWeb/UIEvents/UIEvent.idl b/Userland/Libraries/LibWeb/UIEvents/UIEvent.idl
index e3eb996fea..d79f774fa8 100644
--- a/Userland/Libraries/LibWeb/UIEvents/UIEvent.idl
+++ b/Userland/Libraries/LibWeb/UIEvents/UIEvent.idl
@@ -1,7 +1,7 @@
 #import <DOM/Event.idl>
 
 // https://w3c.github.io/uievents/#uievent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface UIEvent : Event {
     constructor(DOMString type, optional UIEventInit eventInitDict = {});
     readonly attribute Window? view;
diff --git a/Userland/Libraries/LibWeb/UIEvents/WheelEvent.idl b/Userland/Libraries/LibWeb/UIEvents/WheelEvent.idl
index 969126869f..51a633737b 100644
--- a/Userland/Libraries/LibWeb/UIEvents/WheelEvent.idl
+++ b/Userland/Libraries/LibWeb/UIEvents/WheelEvent.idl
@@ -1,7 +1,7 @@
 #import <UIEvents/MouseEvent.idl>
 
 // https://www.w3.org/TR/uievents/#idl-wheelevent
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface WheelEvent : MouseEvent {
     // DeltaModeCode
     const unsigned long DOM_DELTA_PIXEL = 0x00;
diff --git a/Userland/Libraries/LibWeb/URL/URL.idl b/Userland/Libraries/LibWeb/URL/URL.idl
index fa8a4f980e..2bf44ba0c5 100644
--- a/Userland/Libraries/LibWeb/URL/URL.idl
+++ b/Userland/Libraries/LibWeb/URL/URL.idl
@@ -2,7 +2,7 @@
 #import <URL/URLSearchParams.idl>
 
 // https://url.spec.whatwg.org/#url
-[Exposed=*, LegacyWindowAlias=webkitURL, UseNewAKString]
+[Exposed=*, LegacyWindowAlias=webkitURL]
 interface URL {
     constructor(USVString url, optional USVString base);
 
diff --git a/Userland/Libraries/LibWeb/URL/URLSearchParams.idl b/Userland/Libraries/LibWeb/URL/URLSearchParams.idl
index f90559a954..6269743ad8 100644
--- a/Userland/Libraries/LibWeb/URL/URLSearchParams.idl
+++ b/Userland/Libraries/LibWeb/URL/URLSearchParams.idl
@@ -1,5 +1,5 @@
 // https://url.spec.whatwg.org/#urlsearchparams
-[Exposed=*, UseNewAKString]
+[Exposed=*]
 interface URLSearchParams {
 
   constructor(optional (sequence<sequence<USVString>> or record<USVString, USVString> or USVString) init = "");
diff --git a/Userland/Libraries/LibWeb/UserTiming/PerformanceMark.idl b/Userland/Libraries/LibWeb/UserTiming/PerformanceMark.idl
index 0b93a6c636..1e815a0759 100644
--- a/Userland/Libraries/LibWeb/UserTiming/PerformanceMark.idl
+++ b/Userland/Libraries/LibWeb/UserTiming/PerformanceMark.idl
@@ -1,7 +1,7 @@
 #import <PerformanceTimeline/PerformanceEntry.idl>
 
 // https://w3c.github.io/user-timing/#dom-performancemark
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface PerformanceMark : PerformanceEntry {
     constructor(DOMString markName, optional PerformanceMarkOptions markOptions = {});
     readonly attribute any detail;
diff --git a/Userland/Libraries/LibWeb/UserTiming/PerformanceMeasure.idl b/Userland/Libraries/LibWeb/UserTiming/PerformanceMeasure.idl
index a3df4281bb..18196d4bd4 100644
--- a/Userland/Libraries/LibWeb/UserTiming/PerformanceMeasure.idl
+++ b/Userland/Libraries/LibWeb/UserTiming/PerformanceMeasure.idl
@@ -1,6 +1,6 @@
 #import <PerformanceTimeline/PerformanceEntry.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface PerformanceMeasure : PerformanceEntry {
     readonly attribute any detail;
 };
diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLContextEvent.idl b/Userland/Libraries/LibWeb/WebGL/WebGLContextEvent.idl
index fc1493c2c4..5104d69396 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLContextEvent.idl
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLContextEvent.idl
@@ -1,6 +1,6 @@
 #import <DOM/Event.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface WebGLContextEvent : Event {
     constructor(DOMString type, optional WebGLContextEventInit eventInit = {});
     readonly attribute DOMString statusMessage;
diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl
index e21b862dd3..f87b8d1023 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl
@@ -1,6 +1,6 @@
 #import <WebGL/WebGLRenderingContextBase.idl>
 
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface WebGLRenderingContext {
 };
 
diff --git a/Userland/Libraries/LibWeb/WebIDL/DOMException.idl b/Userland/Libraries/LibWeb/WebIDL/DOMException.idl
index f150db7b00..39c52ca83f 100644
--- a/Userland/Libraries/LibWeb/WebIDL/DOMException.idl
+++ b/Userland/Libraries/LibWeb/WebIDL/DOMException.idl
@@ -1,5 +1,5 @@
 // https://webidl.spec.whatwg.org/#idl-DOMException
-[Exposed=*, Serializable]
+[Exposed=*, Serializable, UseDeprecatedAKString]
 interface DOMException {
 
     constructor(optional DOMString message = "", optional DOMString name = "Error");
diff --git a/Userland/Libraries/LibWeb/WebSockets/WebSocket.idl b/Userland/Libraries/LibWeb/WebSockets/WebSocket.idl
index 0ac6b3508c..97ce64abad 100644
--- a/Userland/Libraries/LibWeb/WebSockets/WebSocket.idl
+++ b/Userland/Libraries/LibWeb/WebSockets/WebSocket.idl
@@ -2,7 +2,7 @@
 #import <DOM/EventHandler.idl>
 
 // https://websockets.spec.whatwg.org/#websocket
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface WebSocket : EventTarget {
 
     constructor(USVString url, optional (DOMString or sequence<DOMString>) protocols);
diff --git a/Userland/Libraries/LibWeb/XHR/FormData.idl b/Userland/Libraries/LibWeb/XHR/FormData.idl
index caffdc16b9..bb0d68479e 100644
--- a/Userland/Libraries/LibWeb/XHR/FormData.idl
+++ b/Userland/Libraries/LibWeb/XHR/FormData.idl
@@ -9,7 +9,7 @@
 typedef (File or USVString) FormDataEntryValue;
 
 // https://xhr.spec.whatwg.org/#interface-formdata
-[Exposed=Window, UseNewAKString]
+[Exposed=Window]
 interface FormData {
     constructor(optional HTMLFormElement form);
 
diff --git a/Userland/Libraries/LibWeb/XHR/ProgressEvent.idl b/Userland/Libraries/LibWeb/XHR/ProgressEvent.idl
index c1e736b196..169228cd20 100644
--- a/Userland/Libraries/LibWeb/XHR/ProgressEvent.idl
+++ b/Userland/Libraries/LibWeb/XHR/ProgressEvent.idl
@@ -1,7 +1,7 @@
 #import <DOM/Event.idl>
 
 // https://xhr.spec.whatwg.org/#interface-progressevent
-[Exposed=(Window,Worker), UseNewAKString]
+[Exposed=(Window,Worker)]
 interface ProgressEvent : Event {
     constructor(DOMString type, optional ProgressEventInit eventInitDict = {});
 
diff --git a/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.idl b/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.idl
index 910917a203..4b697b8506 100644
--- a/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.idl
+++ b/Userland/Libraries/LibWeb/XHR/XMLHttpRequest.idl
@@ -14,7 +14,7 @@ enum XMLHttpRequestResponseType {
 };
 
 // https://xhr.spec.whatwg.org/#xmlhttprequest
-[Exposed=(Window,DedicatedWorker,SharedWorker), UseNewAKString]
+[Exposed=(Window,DedicatedWorker,SharedWorker)]
 interface XMLHttpRequest : XMLHttpRequestEventTarget {
 
     constructor();