A full logout for users logged in via Google OAuth2

I have a web app in reactjs that uses the Google login that is integrated into Appwrite for user login. I use createOAuth2Token() to login to their account. And I use createSession() to create a session within the Appwrite environment. To logout, I use deleteSession(). This approach of mine, however, only deletes the user's in process session within the Appwrite environment. It does not logout the user from their google account. I know this, because after clicking 'logout, when the user tries to log back in, they are immediately signed in without being prompted to enter their Google credentials again. I logged the details of the session, and I saw that providerAccessToken is an empty string. Since providerAccessToken is an empty string for Googe OAuth2 logins, I assumend that the session $id can replace it. However, it did not help. Google returns Bad Request and does not logout the user from Google.

export const deleteUserSession = async () => {

    const currentSession = await account.getSession('current');
    const accessToken = currentSession.$id;
    console.log('currentSession', currentSession);
    console.log('accessToken', accessToken);
    try {
        if (currentSession && accessToken) {
            await account.deleteSession(currentSession.$id);
            console.log('Session deleted successfully');

            await fetch('https://accounts.google.com/o/oauth2/revoke?token=' + accessToken, {
                method: 'GET',
                mode: 'no-cors',
            });

            console.log('LOGGED OUT SUCCESSFULLY.');
        }
        console.log('REDIRECTING TO /'); 
    } catch (error) {
        console.error('Error deleting the session:', error);
    }
}