This is a testharness.js-based test.
FAIL Verify canvas tainting of fetched image in a Service Worker assert_equals: expected "finish" but got "failure:Result of url:https://www1.web-platform.test:8444/service-workers/service-worker/resources/fetch-access-control.py?PNGIMAGE&ACAOrigin=https://web-platform.test:8444&ignore&cache  cross_origin: anonymous must be NOT_TAINTED but LOAD_ERROR"
Harness: the test ran to completion.

