diff --git a/Userland/Libraries/LibWeb/DOM/Element.cpp b/Userland/Libraries/LibWeb/DOM/Element.cpp
index 5a6ab10e52..c20bac4bd6 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Element.cpp
@@ -8,6 +8,7 @@
 #include <AK/Debug.h>
 #include <AK/StringBuilder.h>
 #include <LibWeb/Bindings/ElementPrototype.h>
+#include <LibWeb/Bindings/ExceptionOrUtils.h>
 #include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/CSS/PropertyID.h>
 #include <LibWeb/CSS/ResolvedCSSStyleDeclaration.h>
@@ -66,7 +67,9 @@ JS::ThrowCompletionOr<void> Element::initialize(JS::Realm& realm)
     MUST_OR_THROW_OOM(Base::initialize(realm));
     set_prototype(&Bindings::ensure_web_prototype<Bindings::ElementPrototype>(realm, "Element"));
 
-    m_attributes = NamedNodeMap::create(*this);
+    m_attributes = TRY(Bindings::throw_dom_exception_if_needed(realm.vm(), [&]() {
+        return NamedNodeMap::create(*this);
+    }));
 
     return {};
 }
diff --git a/Userland/Libraries/LibWeb/DOM/NamedNodeMap.cpp b/Userland/Libraries/LibWeb/DOM/NamedNodeMap.cpp
index 074f9e71ee..57980f11dd 100644
--- a/Userland/Libraries/LibWeb/DOM/NamedNodeMap.cpp
+++ b/Userland/Libraries/LibWeb/DOM/NamedNodeMap.cpp
@@ -13,10 +13,10 @@
 
 namespace Web::DOM {
 
-JS::NonnullGCPtr<NamedNodeMap> NamedNodeMap::create(Element& element)
+WebIDL::ExceptionOr<JS::NonnullGCPtr<NamedNodeMap>> NamedNodeMap::create(Element& element)
 {
     auto& realm = element.realm();
-    return realm.heap().allocate<NamedNodeMap>(realm, element).release_allocated_value_but_fixme_should_propagate_errors();
+    return MUST_OR_THROW_OOM(realm.heap().allocate<NamedNodeMap>(realm, element));
 }
 
 NamedNodeMap::NamedNodeMap(Element& element)
diff --git a/Userland/Libraries/LibWeb/DOM/NamedNodeMap.h b/Userland/Libraries/LibWeb/DOM/NamedNodeMap.h
index 655f298a5e..b7fc134e8f 100644
--- a/Userland/Libraries/LibWeb/DOM/NamedNodeMap.h
+++ b/Userland/Libraries/LibWeb/DOM/NamedNodeMap.h
@@ -22,7 +22,7 @@ class NamedNodeMap : public Bindings::LegacyPlatformObject {
     WEB_PLATFORM_OBJECT(NamedNodeMap, Bindings::LegacyPlatformObject);
 
 public:
-    static JS::NonnullGCPtr<NamedNodeMap> create(Element&);
+    static WebIDL::ExceptionOr<JS::NonnullGCPtr<NamedNodeMap>> create(Element&);
     ~NamedNodeMap() = default;
 
     virtual bool is_supported_property_index(u32 index) const override;