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pierov pushed a commit to branch tor-browser-91.13.0esr-11.5-1 in repository tor-browser.
The following commit(s) were added to refs/heads/tor-browser-91.13.0esr-11.5-1 by this push: new a81e14e5ee79 Bug 1780348 - Exit fullscreen if DOMFullscreenChild is not able to continue the fullscreen transition; r=smaug, a=RyanVM a81e14e5ee79 is described below
commit a81e14e5ee7975305f1844c46142324039946270 Author: Edgar Chen echen@mozilla.com AuthorDate: Mon Aug 8 20:06:32 2022 +0000
Bug 1780348 - Exit fullscreen if DOMFullscreenChild is not able to continue the fullscreen transition; r=smaug, a=RyanVM
Differential Revision: https://phabricator.services.mozilla.com/D153807 --- browser/actors/DOMFullscreenChild.jsm | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/browser/actors/DOMFullscreenChild.jsm b/browser/actors/DOMFullscreenChild.jsm index b0f3769dfa57..008d1e6e5cb4 100644 --- a/browser/actors/DOMFullscreenChild.jsm +++ b/browser/actors/DOMFullscreenChild.jsm @@ -25,6 +25,13 @@ class DOMFullscreenChild extends JSWindowActorChild { let remoteFrameBC = aMessage.data.remoteFrameBC; if (remoteFrameBC) { let remoteFrame = remoteFrameBC.embedderElement; + if (!remoteFrame) { + // This could happen when the page navigate away and trigger a + // process switching during fullscreen transition, tell the parent + // to just exit. + this.sendAsyncMessage("DOMFullscreen:Exit", {}); + break; + } this._isNotTheRequestSource = true; windowUtils.remoteFrameFullscreenChanged(remoteFrame); } else {