WebRTC Support Zscaler

For my call center solution I am planning to use, WebRTC using Firefox .
Currently all my traffic to Internet goes via Zscaler proxy via configured proxy PAC.

In this case if I use WebRTC from my browser, does Zscaler supports it ?
Since it is voice related the communication happens on UDP & also on TCP ports like 3478 etc…

Will Zscaler supports WebRTC communication & also does it supports UDP traffic ?

Any inputs or help regarding this