Got origin_mismatch error in Google+ share api

Question

I want to share some dynamic content on google+. For this I checked it https://developers.google.com/+/web/share/interactive#rendering_the_button_with_javascript

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Answer 1

1: Open the Credentials page for your project.

2:Double-click on your OAuth 2.0 Web client in the client ID list.

3: Make sure that in the web client ID form, change the Authorized JavaScript origins field to http://localhost:8080 when you are running the server locally. When running remotely add the corresponding appspot server url.