imported/w3c/web-platform-tests/upgrade-insecure-requests/gen/worker-classic.http-rp/upgrade/worker-classic.https.html imported/w3c/web-platform-tests/upgrade-insecure-requests/gen/worker-classic.http-rp/upgrade/worker-module.https.html imported/w3c/web-platform-tests/upgrade-insecure-requests/gen/worker-module.http-rp/upgrade/worker-classic.https.html imported/w3c/web-platform-tests/upgrade-insecure-requests/gen/worker-module.http-rp/upgrade/worker-module.https.html Are 4 flaky crashes on macOS wk1 ToT and since around 254597@main. The assert failed error pointing to WorkerOrWorkletThread.cpp indicates it most likely is caused by 254597@main. HISTORY: https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fupgrade-insecure-requests%2Fgen%2Fworker-classic.http-rp%2Fupgrade%2Fworker-classic.https.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fupgrade-insecure-requests%2Fgen%2Fworker-classic.http-rp%2Fupgrade%2Fworker-module.https.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fupgrade-insecure-requests%2Fgen%2Fworker-module.http-rp%2Fupgrade%2Fworker-classic.https.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fupgrade-insecure-requests%2Fgen%2Fworker-module.http-rp%2Fupgrade%2Fworker-module.https.html DIFF: stdout: FAIL Upgrade-Insecure-Requests: Expects allowed for worker-module to same-http-downgrade origin and downgrade redirection from https context. assert_equals: The resource request should be 'allowed'. expected "allowed" but got "blocked" FAIL Upgrade-Insecure-Requests: Expects allowed for worker-module to same-http-downgrade origin and no-redirect redirection from https context. assert_equals: The resource request should be 'allowed'. expected "allowed" but got "blocked" FAIL Upgrade-Insecure-Requests: Expects allowed for worker-module to same-https origin and downgrade redirection from https context. assert_equals: The resource request should be 'allowed'. expected "allowed" but got "blocked" stderr: CONSOLE MESSAGE: Unsafe attempt to load URL http://localhost:9443/common/security-features/subresource/worker.py?action=purge&key=21ad7d01-4976-4f56-be14-d26bf43f2b47&path=%2Fmixed-content from origin https://localhost:9443. Domains, protocols and ports must match. ASSERTION FAILED: m_globalScope->hasOneRef() workers/WorkerOrWorkletThread.cpp(203) : void WebCore::WorkerOrWorkletThread::destroyWorkerGlobalScope(Ref<WebCore::WorkerOrWorkletThread> &&) 1 0x16f40ebb0 (null) 2 0x119c9e1dd (null) 3 0xb17768778 (null) 4 0x16f40ebb0 (null) 5 0x16f40eb68 (null) 6 0x16f40eb80 (null) 7 0x117768914 WTFPrintBacktrace 8 0x16f40eb68 (null) 9 0x11a62d738 vtable for CrashLogPrintStream 10 0xb6f40eb9c (null) 11 0x16f40ebb0 (null) BUILD URL: https://build.webkit.org/results/Apple-BigSur-Debug-WK1-Tests/254960@main%20(9630)/results.html