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"Invalid signature" error trying to use google authentication
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I've configured Canvas to use the "google" authentication on the Admin->Authentication page. Note I don't mean the SAML authentication type with GSuite as the IDP, but the actual "google" choice from the "Add an identity provider to this account" dropdown.
I'm able to configure the provider without any errors, but when I actually try to log in with a Google consumer/personal account, at the end of the login process I am sent to the discovery page I configured, with following suffix to the URL:
message=Invalid%20signature:%20JSON::JWK::Set::KidNotFound
I was able to configure google authentication in my Canvas beta site a couple of weeks ago and was successful logging in with the same consumer/personal account with no issues so am confused that this is happening on my Canvas prod site.
Any suggestions?
thanks!
Martin