WebGL shader causes visual gliteches to UI using Safari, with Intel GPU

[Alastair_D_1]

This video demonstrates that rendering via WebGL in Safari on a Mac, with an Intel GPU, leads to visual glitches outside the WebGL drawing area:

https://www.youtube.com/watch?v=OIPhyZrDG60

This seems like a potentially exploitable security issue, so I won't provide reproduction instructions here.  But I'd be happy to provide the details to Intel if they are interested - please let me know.

Ally

[Michael_C_Intel2]

Feel free to send me a private message with the template and pertinent details so we can investigate.