Laravel Socialite: InvalidStateException

The InvalidStateException is thrown by Laravel's Socialite package when the state parameter provided in the OAuth redirect URL does not match the one stored in the session. This is usually caused by one of the following reasons:

  1. The user has manually changed the state parameter in the redirect URL.
  2. The user has opened the OAuth redirect URL in a different browser or tab.
  3. The user has closed the browser or tab before being redirected back to your application.
  4. The session data has been lost or tampered with before the user was redirected back to your application.

To fix this issue, you can try the following:

  1. Make sure that the state parameter is being generated and stored securely in the session.
  2. Make sure that the state parameter is being compared correctly in the redirect URL.
  3. Make sure that the user is being redirected back to your application immediately after being authorized.

You can also try to increase the session lifetime, as this can solve the problem too in some cases.