▶ TIMEOUT [expected ERROR] /fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade.sub.html
  │ 
  │ _RegisterApplication(), FAILED TO establish the default connection to the WindowServer, _CGSDefaultConnection() is NULL.
  │ [2020-07-13T14:55:20Z ERROR servo::browser] Multiple top level browsing contexts not supported yet.
  └ [2020-07-13T14:55:20Z ERROR script::dom::bindings::error] Error at http://web-platform.test:8000/fetch/metadata/resources/redirectTestHelper.sub.js:163:46 document.createElement(...).relList.supports is not a function