Chrome Version       : 57.0.2970.0
OS Version: 9150.0.0
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5:
  Firefox 4.x:
     IE 7/8/9:

What steps will reproduce the problem?
1. No steps were taken - I just noticed it was casting without my intervention

What is the expected result?
Cast-free until I decide otherwise

What happens instead of that?
Casting to a public CC device was enabled.

Please provide any additional information below. Attach a screenshot if
possible.


UserAgentString: Mozilla/5.0 (X11; CrOS x86_64 9150.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2970.0 Safari/537.36

I have disabled the cast when I noticed it and sent feedback with the tg #inadvertentcasting