Status Media Upload Redirects With Admin Dashboard Restriction

I have traced down my issue to ajax loading... I am using the following code to restrict authors away from the admin dashboard. The media upload still works on the Frontier Post front end forms, but fails when using Status. Can you please help me modify the code so it works for both Frontier Post and Status? Thank You!!!

function fp_restrict_backend_access()
{
if ( is_admin() && ! current_user_can( 'manage_options' ) && ! ( defined( 'DOING_AJAX' ) && DOING_AJAX ) )
{
wp_redirect( home_url() );
exit;
}
}
add_action( 'init', 'fp_restrict_backend_access' );