Hi all I upgraded to the GM Candidate earlier on in the week and I've found an annoying 'feature' that I can't seem to find how to undo. If I've got iTunes open and I'm listening to some music, then switch to Safari and play a video, the play/pause button on the keyboard stops the video and not the music in iTunes. Is there anyway to get it to play/pause iTunes like it did in 10.12? Its driving me nuts! I've looked in System preferences and in Safari preferences but can't see anything to stop this happening. Thanks in advance.