sousa-gecko/testing/web-platform/meta/clear-site-data/clear-cache-bfcache-partitioning.tentative.https.html.ini

prefs: [privacy.clearSiteDataHeader.cache.bfcache.enabled:true]
[clear-cache-bfcache-partitioning.tentative.https.html]
  [BfCached document should be dropped when containing same-site iframe and that same-site received clear-cache header]
    expected:
      if not sessionHistoryInParent and not fission: FAIL