Origin Mismatch error returned from OAuth2 attempt to redirect to the calendar services

[RobO]

Problem Summary:
Getting Origin Mismatch error returned from OAuth2 attempt to redirect to the calendar services. The client ID, API Key and all such I have check several times to verify they are identical between the code and the API Console GAE.

Source Code: Attempting to get following example running in my own development environment prior to building my application that needs same services.
http://code.google.com/p/gwt-google-apis/source/browse/trunk/apis/samples/calendar/com/google/api/gwt/samples/calendar/client/CalendarEntryPoint.java?r=2040

Using gwt-oauth2 and gwt

APPLICATION_NAME = "calendarsample"
Client ID:    Client ID is identical in all 3 occurrences:  (1) Source file, (2) App Engine API Console and returned (3) Error "origin_mismatch" Request Details

Redirect URIs:        https://cal2sample.appspot.com/calendarsample/oauthWindow.html

JavaScript origins:    https://cal2sample.appspot.com

API Key:    The API Keys are identical in the source code and API Console

Result: An Error Dialog is presented when attempting to authenticate to calendar in Chrome:

Error: origin_mismatch
Request Details
        scope=https://www.googleapis.com/auth/calendar
        response_type=token
        access_type=online
        redirect_uri=postmessage
        proxy=oauth2relay355812899
        origin=http://cal2sample.appspot.com
        state=305481901
        display=page
        client_id=___________________.apps.googleusercontent.com
        authuser=0

Note that I have not included source code, since it is a google example that has not be modified except for the API key and client id, name.
Desperate and Serious need for answers!
Thank you very much for any ideas.

[Vladimir Kolovski]

Hi, 

One of your origins has starts with http, the other with https.

Cheers,

Vlad

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[Robert Owens]

Thank you Vlad!!

You are correct and that was the issue, the s.
I studied all the characters and missed those essentials at the beginning.  Another humbling moments of great thanks.
Needless to say that if I am going to both authenticating all of the URLs should be https, but I just want to get the basic interface working to start.

Thank you Vlad!

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