These last days, bitdefender antivirus was signaling html5 chat script as “trojan Js:Tryxos:4440”
That was of course a false positive.
We opened a ticket with Bitdefender and also updated our script so it is not seen as a false positive.
Many of html5-chat users do complain about “black” webcams.
Problem is that this issue can have multiple causes:
There is a simple way to determine what’s wrong: start your own webcam then double click on it, you should see your OWN webcam playing.
If you see your own webcam, then everything is fine. If you cannot see it, then obviously there is a problem and you can open a support ticket.