>>> My Info: Win7_64, Nightly 45, 32bit, ID 20151120030227 STR: 1. Open any video (in the web or local) by direct link. You can use this link > sample_video: http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4 2. Doubleclick the video [to switch it to DOM fullscreen] 3. Press Alt+Home [to navigate to another url. You can also press Alt+Left/Right if it's available] 4. Press Alt+Left [to navigate back to video] Result: Video controls disappear after Step 4. They don't reappear when I move mouse. Console repeatedly says: "TypeError: this.Utils is undefined" This happens more often, but steps above are the only reliable steps I found so far. Expectations: Video controls should be displayed as usual Workaround: Right-click the video, click "Hide Controls". Then right-click video, click "Show Controls"
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