LibWeb/Fetch: Propagate OOM errors from HeaderList::extract_mime_type()

Author: https://github.com/linusg
Commit: ad4b4046f4
Pull-request: https://github.com/SerenityOS/serenity/pull/17698
Reviewed-by: https://github.com/kennethmyhra ✅

Userland/Libraries/LibWeb/Fetch/Fetching/Fetching.cpp

@@ -447,7 +447,7 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
                     // FIXME: - should internalResponse to request be blocked by Content Security Policy
                     || false
                     // - should internalResponse to request be blocked due to its MIME type
-                    || Infrastructure::should_response_to_request_be_blocked_due_to_its_mime_type(internal_response, request) == Infrastructure::RequestOrResponseBlocking::Blocked
+                    || TRY_OR_IGNORE(Infrastructure::should_response_to_request_be_blocked_due_to_its_mime_type(internal_response, request)) == Infrastructure::RequestOrResponseBlocking::Blocked
                     // - should internalResponse to request be blocked due to nosniff
                     || TRY_OR_IGNORE(Infrastructure::should_response_to_request_be_blocked_due_to_nosniff(internal_response, request)) == Infrastructure::RequestOrResponseBlocking::Blocked)) {
                 // then set response and internalResponse to a network error.