This is a testharness.js-based test.
FAIL Test FetchEvent.request passed to onfetch assert_equals: Default User-Agent header should not be passed to onfetch event. expected (undefined) undefined but got (string) "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.77.34.5 Safari/537.36"
Harness: the test ran to completion.

