Thanks Jan-Ivar.  I updated our client-side code to use adapter.js, and that 
was a nice improvement.

On Friday, January 8, 2016 at 4:57:55 PM UTC-7, Jan-Ivar Bruaroey wrote:
> On 1/7/16 12:38 PM, jnoring wrote:
> > On Thursday, January 7, 2016 at 9:22:15 AM UTC-7, Jan-Ivar Bruaroey wrote:
> >> Look closely at the Firefox permission dialog here, and you'll see it
> >> doesn't actually let users change the camera or microphone (because the
> >> site uses `exact` constraints).
> >
> > Interesting--is that "exact" constraint documented somewhere?
> 
> See [1] and [2].
> 
> > Does Chrome support it as well?
> 
> Only if you use adapter.js, the official WebRTC polyfill. [3]
> 
> That's because Chrome still uses an older `mandatory`/`optional` 
> constraints syntax, which can express the same thing (`exact` has the 
> same effect as `mandatory`).
> 
> ..: Jan-Ivar :.
> 
> [1] 
> https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia#Parameters
> [2] http://w3c.github.io/mediacapture-main/getusermedia.html#methods-6
> [3] https://github.com/webrtc/adapter/
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