CONSOLE ERROR: line 152: Uncaught TypeError: Cannot read property 'unregister' of undefined This is a testharness.js-based test. PASS FAIL Test Performance Timeline API in Service Worker PASS User Timing FAIL Resource Timing assert_equals: expected 2 but got 1 assert_unreached: unregister should not fail: Failed to get a ServiceWorkerRegistration: The URL protocol of the current origin ('file://') is not supported. Reached unreachable code Harness: the test ran to completion.