Edit with Emacs extension has stopped working in all Chrome windows except my @google windows

[marclevoy]

I work at Google (hence the reference to @google), and I have been using the
Edit with Emacs Chrome extension for years. Today it stopped working in my
@gmail accounts (several of them), on several Macs.

Specifically, in any tab of any Chrome window logged into my @google account, I
get the little purple edit button, which sends a textfield to my running Emacs
edit server. I get it in Gmail, Calendar, even the Google Translate web site.

But in any tab of any Chrome window logged into my @gmail accounts (I've tried
several accounts), with the extension present and identically configured, I get
no purple button in any of these apps. I actually get the right-click menu to
"Edit in Emacs", but when I click on it, no text is sent. I've checked the
extension's configuration, uninstalled and re-installed the extension, rebooted my
machine, cleared caches and cookies - all the usual first-responder tricks.

Any suggestions?

[stsquad]

@marclevoy hmm this could be Google's own whitelisting. Edit with Emacs can't access a bunch of "special" pages due to Chrome preventing extensions making changes to them. This is a reasonable given the permissions the extension needs to work but I wonder if your internal gmail uses a different URL.

For what it's worth I just tested I could send stuff from my corporate gmail and Inbox and it worked fine.