diff --git a/Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp b/Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp
index 17498cb0ad..87f28df153 100644
--- a/Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp
+++ b/Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp
@@ -48,35 +48,6 @@ bool url_matches_about_blank(AK::URL const& url)
         && url.host().has<Empty>();
 }
 
-// FIXME: This is an outdated older version of "determining the origin" and should be removed.
-// https://html.spec.whatwg.org/multipage/browsers.html#determining-the-origin
-HTML::Origin determine_the_origin(BrowsingContext const& browsing_context, Optional<AK::URL> url, SandboxingFlagSet sandbox_flags, Optional<HTML::Origin> invocation_origin)
-{
-    // 1. If sandboxFlags has its sandboxed origin browsing context flag set, then return a new opaque origin.
-    if (has_flag(sandbox_flags, SandboxingFlagSet::SandboxedOrigin)) {
-        return HTML::Origin {};
-    }
-
-    // 2. If url is null, then return a new opaque origin.
-    if (!url.has_value()) {
-        return HTML::Origin {};
-    }
-
-    // 3. If invocationOrigin is non-null and url matches about:blank, then return invocationOrigin.
-    if (invocation_origin.has_value() && url_matches_about_blank(*url)) {
-        return invocation_origin.value();
-    }
-
-    // 4. If url is about:srcdoc, then return the origin of browsingContext's container document.
-    if (url == AK::URL("about:srcdoc")) {
-        VERIFY(browsing_context.container_document());
-        return browsing_context.container_document()->origin();
-    }
-
-    // 5. Return url's origin.
-    return URL::url_origin(*url);
-}
-
 // https://html.spec.whatwg.org/multipage/document-sequences.html#determining-the-origin
 HTML::Origin determine_the_origin(AK::URL const& url, SandboxingFlagSet sandbox_flags, Optional<HTML::Origin> source_origin, Optional<HTML::Origin> container_origin)
 {
diff --git a/Userland/Libraries/LibWeb/HTML/BrowsingContext.h b/Userland/Libraries/LibWeb/HTML/BrowsingContext.h
index 39d92bd4f8..467f0606c7 100644
--- a/Userland/Libraries/LibWeb/HTML/BrowsingContext.h
+++ b/Userland/Libraries/LibWeb/HTML/BrowsingContext.h
@@ -286,9 +286,6 @@ private:
     bool m_has_been_discarded { false };
 };
 
-// FIXME: Remove this once everything is switched to the new overload.
-HTML::Origin determine_the_origin(BrowsingContext const& browsing_context, Optional<AK::URL> url, SandboxingFlagSet sandbox_flags, Optional<HTML::Origin> invocation_origin);
-
 HTML::Origin determine_the_origin(AK::URL const& url, SandboxingFlagSet sandbox_flags, Optional<HTML::Origin> source_origin, Optional<HTML::Origin> container_origin);
 
 SandboxingFlagSet determine_the_creation_sandboxing_flags(BrowsingContext const&, JS::GCPtr<DOM::Element> embedder);
diff --git a/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp b/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp
index aa70fa8787..a3b8bb3ba5 100644
--- a/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp
+++ b/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp
@@ -306,7 +306,7 @@ void FrameLoader::resource_did_load()
     // (Part of https://html.spec.whatwg.org/#navigating-across-documents)
     // 3. Let responseOrigin be the result of determining the origin given browsingContext, resource's url, finalSandboxFlags, and incumbentNavigationOrigin.
     // FIXME: Pass incumbentNavigationOrigin
-    auto response_origin = HTML::determine_the_origin(browsing_context(), url, final_sandboxing_flag_set, {});
+    // auto response_origin = HTML::determine_the_origin(browsing_context(), url, final_sandboxing_flag_set, {});
 
     auto& vm = Bindings::main_thread_vm();
     auto response = Fetch::Infrastructure::Response::create(vm);
@@ -315,7 +315,8 @@ void FrameLoader::resource_did_load()
         .id = {},
         .request = nullptr,
         .response = response,
-        .origin = move(response_origin),
+        .origin = {},
+        // .origin = move(response_origin),
         .policy_container = HTML::PolicyContainer {},
         .final_sandboxing_flag_set = final_sandboxing_flag_set,
         .cross_origin_opener_policy = HTML::CrossOriginOpenerPolicy {},