Google OAuth Error


We had support from mbientlab in developing an app called OpenActigraphy. This app requires to sign into google drive to begin the use of it. The app was developed about a year ago.

Our project has shifted phases and we are trying to re-launch this app, however, I believe Google has updated their OAuth authorization request to disallow native apps form embedding their authentication.

Upon app launch, there is an 403 error: disallowed_useragent with on a google webpage.

How can this be fixed?

Any help is appreciated.

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