Chromecast debugging via port 9222 stopped working

Question

I've been using port 9222 to debug Chromecast receiver code for over a year. It stopped working today. I get

"You may have to select the shield icon in the address bar to establish a connection"

instead of the the debugging URL. There is no shield icon. This problem seems to be spreading slowly at our site. Everything is enabled for the Chrome browser.

I tried rebooting chromecast, rebooting PC, update Chrome, the Canary beta version, etc. No joy.

Any help is greatly appreciated.

Answer 1

Got the same issue.

I removed chromecast from whitelist and added it again. Reset it again

After I get a page with a link to appengine (Remote Debugging (AppEngine)). There you should allow to load scripts (press shield icon in the right of url path near favourite icon).

Enjoy debugging console :)

Update: Got one more issue - connection to reciever was refised until I check guest mode for reciever in chromecast developers console