Request not allowed from undefined


#1

Hello
When I try to log in to c9.io, after entering username and password, this error occoured:
Request not allowed from undefined
And nothing else happends.
What goes wrong?
Regards
Hermann


#2

This is likely related to browser extensions you have installed (adblockers, etc.). Try logging in in an incognito window in Chrome where you have no browser extensions installed and this should get you in.