[no-opt-in-allows.https.html]
  type: testharness
  prefs: [security.mixed_content.send_hsts_priming:false, security.mixed_content.use_hsts:false]
  [opt_in_method: no-opt-in\n                                 origin: cross-origin-http\n                                 source_scheme: https\n                                 context_nesting: top-level\n                                 redirection: keep-scheme-redirect\n                                 subresource: link-prefetch-tag\n                                 expectation: allowed]
    expected: FAIL
    bug: haven't implement prefetch link as an optionally blockable item

