Latest Chrome Extension breaks Google Sign-In on our website?

Glad it helped explain your problem, @mcanaleta!

The fact that the console was showing that the request was "blocked by client" helped point me in the right direction; often that's an indication of an adblocker, which is what I first suspected, but didn't seem to be the case. But it indicated that something in the browser was blocking it.

Realizing it could be some other Chrome extension, I started to disable a bunch of extensions at the same time, but when I saw 1Password first in my list, I thought about the recent changes that detect/assist with 3rd party logins so tried disabling only that extension - and the problem went away! (If 1Password had decided to name their fantastic product ZPassword it would've taken me much longer to reach the same conclusion. :-) )

steph_giles : Can you confirm if this is a bug that is being actively worked on? Or is there something we can do on our website to prevent our users from having this same problem logging in? (We can't change their 1Password settings for them.)