This is a testharness.js-based test.
[FAIL] event.request has the expected headers for same-origin GET.
promise_test: Unhandled rejection with value: object "Error: assert_array_equals: event.request has the expected headers for same-origin GET. lengths differ, expected array ["accept"] length 1, got ["accept", "sec-ch-ua", "sec-ch-ua-mobile", "sec-ch-ua-platform", "user-agent"] length 5"
[FAIL] event.request has the expected headers for same-origin POST.
promise_test: Unhandled rejection with value: object "Error: assert_array_equals: event.request has the expected headers for same-origin POST. lengths differ, expected array ["accept", "content-type"] length 2, got ["accept", "content-type", "sec-ch-ua", "sec-ch-ua-mobile", "sec-ch-ua-platform", "user-agent"] length 6"
[FAIL] event.request has the expected headers for cross-origin GET.
promise_test: Unhandled rejection with value: object "Error: assert_array_equals: event.request has the expected headers for cross-origin GET. lengths differ, expected array ["accept"] length 1, got ["accept", "sec-ch-ua", "sec-ch-ua-mobile", "sec-ch-ua-platform", "user-agent"] length 5"
[FAIL] event.request has the expected headers for cross-origin POST.
promise_test: Unhandled rejection with value: object "Error: assert_array_equals: event.request has the expected headers for cross-origin POST. lengths differ, expected array ["accept", "content-type"] length 2, got ["accept", "content-type", "sec-ch-ua", "sec-ch-ua-mobile", "sec-ch-ua-platform", "user-agent"] length 6"
Harness: the test ran to completion.