Demo does not work in recent chrome version due to a new security behavior

[SuperPat45]

Demo does not work in recent Chrome version due to a new security behavior:

[hmoffatt]

I could not find the demo source code in any repository either. Did I miss it?

[sagnitude]

I could not find the demo source code in any repository either. Did I miss it?

in the gh-pages branch of this repo

[hmoffatt]

The problem seems to be the getUserMedia contraints in RecorderDemo.js, because the echoCancellation property is marked mandatory. I can't find any documentation about the mandatory object in the current spec. Remove this constraint and it works, or move it outside the mandatory object.