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Kyle Machulis authored
When resetting the BrowsingContext embedder element, only do so if the FrameElement we're setting isn't already null. Differential Revision: https://phabricator.services.mozilla.com/D30562
35ea701f
When resetting the BrowsingContext embedder element, only do so if the FrameElement we're setting isn't already null. Differential Revision: https://phabricator.services.mozilla.com/D30562