Intermittent failure in /html/browsers/browsing-the-web/navigating-across-documents/empty_fragment.html

[jdm]

  ▶ Unexpected subtest result in /html/browsers/browsing-the-web/navigating-across-documents/empty_fragment.html:
  │ FAIL [expected PASS] Navigating to the same URL with an empty fragment aborts the navigation
  │   → assert_equals: expected 1 but got 0
  │ 
  │ window.child_succeeded<@http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/empty_fragment.html:11:5
  │ Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:1406:20
  │ Test.prototype.step_func_done/<@http://web-platform.test:8000/resources/testharness.js:1446:17
  └ onload/timeout<@http://web-platform.test:8000/html/browsers/browsing-the-web/navigating-across-documents/empty_fragment_iframe.html:5:37