Was just thinking that I'd not seen this, then setting up a new cam today had the same happen. Only seems to do it in Chrome on one Win 10 machine. Does not seem to happen in Chrome on a machine I have running Win 7.
Mine turns green as in the screenshots above initially when loading. After about 30 seconds or so will revert to the normal view.
Edit: Change that above... also will do it when loading single cam view. Click out of it and the whole screen is green. Back in again and normal. Back out again and green. Wait a while and good again.