| This is a testharness.js-based test. | |
| PASS empty-ch on navigation precondition: Test that the browser does not have client hints preferences cached | |
| PASS empty-ch on navigation set Accept-CH to non-empty first | |
| PASS empty-ch on navigation set Accept-CH w/o header second | |
| FAIL empty-ch on navigation got client hints according to expectations. assert_equals: message from opened page expected "PASS" but got "FAIL" | |
| Harness: the test ran to completion. | |