Gdrive Oauth2 external storage 422 (Unprocessable Entity)

[yebo29]

https://central.owncloud.org/t/owncloud10-external-storage-googledrive-grant-access-button-no-response/11311/3

See the forum post above for more details, but OAuth2 consent screen is not popping up for some users, including myself. Unable to add google drive as external storage.

Running ownCloud 10.0.9 in Docker on Linux.

Chrome Inspector, Network tab:
{message: “Unsatisfied authentication mechanism parameters”} message: “Unsatisfied authentication mechanism parameters” in Globalstorages

And in Console Tab:
POST https://xxxxx.com/apps/files_external/globalstorages 422 (Unprocessable Entity) send @ jquery.min.js?v=cfd4ed067d6431387287415762634517:4 ajax @ jquery.min.js?v=cfd4ed067d6431387287415762634517:4 save @ settings.js?v=cfd4ed067d6431387287415762634517:277 saveStorageConfig @ settings.js?v=cfd4ed067d6431387287415762634517:1182 (anonymous) @ settings.js?v=cfd4ed067d6431387287415762634517:747 setTimeout (async) _onChange @ settings.js?v=cfd4ed067d6431387287415762634517:746 dispatch @ jquery.min.js?v=cfd4ed067d6431387287415762634517:3 r.handle @ jquery.min.js?v=cfd4ed067d6431387287415762634517:3

[yebo29]

Referenced in #5 and #6