Google auth dialog showing "403 diallowed_useragent"

[hzsheikh]

I'm working on a Powerpoint add-in which supports signing in via Google.
I have used the office-js-helpers library to power the OAuth2 setup for Google.
It works great for most platforms, but when clicked on an iPad, I'm getting a 403 user_agent error from Google:

I believe this is because of a policy change by Google (went into full effect Apr 2017) not allowing OAuth requests from Webviews (as seen here).

Will office-js-helpers be updated to tackle this issue? Do you have any recommendations on how to address this in the meantime?

[sumurthy]

Thanks for bringing this up. We'll get back with any recommendation we may have. At this point, I don't have any new information to offer.