This is a testharness.js-based test.
FAIL Verify WebSocket handshake channel does not get intercepted assert_unreached: unexpected rejection: Blocked unregister should not fail: Failed to get a frame with ServiceWorkerRegistration: The URL protocol of the current origin "https://web-platform.test:8444" from accessing a cross-origin frame. ('file://') is not supported. Reached unreachable code
Harness: the test ran to completion.