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A use Google API to export/import Calendar Events in my application(using MS webbrowser control almost two years. In a last month there is a problem:

Here is the auth. request: https://accounts.google.com/o/oauth2/auth?access_type=offline&response_type=code&client_id=595121125761-jtgfohb86gvpl75au1l6f3h9cdjvoi7e.apps.googleusercontent.com&redirect_uri=https://www.imaster.co.il/interactive/code&scope=https://www.googleapis.com/auth/calendar&login_hint=info@imaster.co.il&include_granted_scopes=true&approval_prompt=force

SO When it runs on MS webbrowser control, the ALLOW button unlikely disabled (Webbrowser Control.bmp)

BUT When it runs on Internet Explorer (on the same computer), the ALLOW button propertly enabled (IExplorer.bmp)

It happens on different computers. I need your help to solve it. There are two screen attached.

2 Attachments img

Raj Paliwal
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  • It is probably a security feature of the Google oAuth2 system. Does your web browser control interpret JavaScript? If you are using C# try this: https://stackoverflow.com/questions/40922370/allow-system-windows-forms-webbrowser-to-run-javascript and https://stackoverflow.com/questions/38514184/how-can-i-get-the-webbrowser-control-to-show-modern-contents/38514446#38514446 – Pascal Werkl Jan 06 '20 at 16:06
  • The MS webcontrol is standart. Used by VB 6 Classic despot application. Till December 2019 it was ok, but suddenly it stoped work. Now all my oAuth2 clients are unable to export their calendar event into google calendar. – Andrey Scobarev Jan 13 '20 at 13:44

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