313240 2026-04-24 09:31:52 -0700 REGRESSION(311895@main): [macOS Debug Release]: ASSERTION FAILED: m_site->protocol() == url.protocol() || m_site->protocol() 2026-04-24 09:58:12 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 313075 1 darbinyan webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 2204160 0 darbinyan 2026-04-24 09:31:52 -0700 Multiple API tests are crashing in Debug in iOS and macOS after 311895@main. 07:52:01.802 27941 ASSERTION FAILED: m_site->protocol() == url.protocol() || m_site->protocol() == "about"_s 07:52:01.802 27941 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Source/WebKit/UIProcess/WebProcessProxy.cpp(2279) : void WebKit::WebProcessProxy::didStartProvisionalLoadForMainFrame(const URL &) 07:52:01.854 27941 1 0x3039877a4 WebKit::WebProcessProxy::didStartProvisionalLoadForMainFrame(WTF::URL const&) 07:52:01.857 27941 2 0x30377d1e4 WebKit::WebPageProxy::didStartProvisionalLoadForFrameShared(WTF::Ref<WebKit::WebProcessProxy, WTF::RawPtrTraits<WebKit::WebProcessProxy>, WTF::DefaultRefDerefTraits<WebKit::WebProcessProxy>>&&, WTF::ObjectIdentifierGeneric<WebCore::FrameIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits<unsigned long long>, unsigned long long>, WebKit::FrameInfoData&&, WebCore::ResourceRequest&&, std::__1::optional<WTF::ObjectIdentifierGeneric<WebCore::NavigationIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits<unsigned long long>, unsigned long long>>, WTF::URL&&, WTF::URL&&, WebKit::UserData const&, WTF::WallTime) 07:52:01.859 27941 3 0x30377c818 WebKit::WebPageProxy::didStartProvisionalLoadForFrame(IPC::Connection&, WTF::ObjectIdentifierGeneric<WebCore::FrameIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits<unsigned long long>, unsigned long long>, WebKit::FrameInfoData&&, WebCore::ResourceRequest&&, std::__1::optional<WTF::ObjectIdentifierGeneric<WebCore::NavigationIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits<unsigned long long>, unsigned long long>>, WTF::URL&&, WTF::URL&&, WebKit::UserData const&, WTF::WallTime) Test results: https://ews-build.webkit.org/#/builders/165/builds/22399 Test history: https://results.webkit.org/?suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&suite=api-tests&test=TestWebKitAPI.ContentFiltering.CookieAccessFromReplacementData&test=TestWebKitAPI.ContentFiltering.LoadAlternateAfterAddDataWK2&test=TestWebKitAPI.ContentFiltering.LoadAlternateAfterFinishedAddingDataWK2&test=TestWebKitAPI.ContentFiltering.LoadAlternateAfterRedirectWK2&test=TestWebKitAPI.ContentFiltering.LoadAlternateAfterResponseWK2&test=TestWebKitAPI.ContentFiltering.LoadAlternateAfterWillSendRequestWK2&test=TestWebKitAPI.ContentFiltering.URLAfterServerRedirectBlocked&test=TestWebKitAPI.ParentalControlsContentFilteringTests.BlockedURLAfterMultipleRedirections_BlockFinal&test=TestWebKitAPI.ParentalControlsContentFilteringTests.BlockedURLAfterMultipleRedirections_BlockMiddle&test=TestWebKitAPI.ParentalControlsContentFilteringTests.BlockedURLAfterMultipleRedirections_BlockStart&test=TestWebKitAPI.ParentalControlsContentFilteringTests.BlockedURLAfterRedirect&test=TestWebKitAPI.SafeBrowsing.DeferredModalsClearedOnNavigation&style=debug 2204161 1 webkit-bug-importer 2026-04-24 09:32:14 -0700 <rdar://problem/175520417> 2204171 2 ews-feeder 2026-04-24 09:58:10 -0700 Committed 311960@main (69872b94ca3a): <https://commits.webkit.org/311960@main> Reviewed commits have been landed. Closing PR #63528 and removing active labels.