Bug with Microsoft ADFS after PR 684 about socialite HOT 3 CLOSED

class ADFSProvider extends AbstractProvider
{
    // ...

    /**
     * Get the headers for the access token request.
     *
     * FIX Issue https://github.com/laravel/socialite/issues/693
     *
     * @param  string  $code
     * @return array
     */
    protected function getTokenHeaders($code)
    {
        return ['Accept' => 'application/json'];
    }

    // ...
}