Query Parameters for Hosted page

Another way is to use additional params in the authParamsMap like this:

    webAuth.authorize({
      authParamsMap: {'myAdditionalParam': 'something'}
    });

which would then be available under config.extraParams.myAdditionalParam in the hosted login page. Though originally meant to be used to pass a non-standard parameter to an upstream IdP, it would also work for this use case.

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