213190 2020-06-15 05:19:47 -0700 [GTK] WebKitPolicyClient new-window-policy is racey 2020-06-15 05:22:56 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=184845 P2 Normal --- 1 cturner webkit-unassigned bugs-noreply oldest_to_newest 1662609 0 cturner 2020-06-15 05:19:47 -0700 In this function in WebKitPolicyClient test, void beforeAll() { kServer = new WebKitTestServer(); kServer->run(serverCallback); PolicyClientTest::add("WebKitPolicyClient", "navigation-policy", testNavigationPolicy); // 1 PolicyClientTest::add("WebKitPolicyClient", "response-policy", testResponsePolicy); // 2 PolicyClientTest::add("WebKitPolicyClient", "new-window-policy", testNewWindowPolicy); // 3 } If you run any permutations where 3 is not last, you will hit assertions. Placing 3 first gives it the best chance of failing. The issue is caused due to the piggy timeouts in the new window policy test, they come with a comment, // Using a short timeout is a bit ugly here, but it's hard to get around because if we block // the new window signal we cannot halt the main loop in the create callback. If we // halt the main loop in the policy decision, the create callback never executes.