No full screen webcam video on PC

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Description of th: On visiting the many holiday webcam sites I like to view (Below) I can’t make the video show up full screen… I can select the play button and view the cams in small screen view but when trying to access the full screen there is just a grey screen with a central play button. Which when clicked just sends me back to the small screen view again. It would be great if this could be fixed please as I am having to revert to other browesrs like Chrome / Firefox etc to view these sites, and I would like to use Opera fully as my browser if possible.

Steps to Reproduce (add as many as necessary): 1. Click play button centre of full screen

Actual Result (gifs and screenshots are welcome!): Full grey screen just reverts to small screen video again

Expected result: Video should play Full screen

Reproduces how often: Every Time

Brave Version(about:brave): Version 0.64.77 Chromium: 74.0.3729.169 (Official Build) (64-bit)

Reproducible on current live release (yes/no): Yes

Additional Information: