lsilver on "[Plugin: Autoptimize] Any way of not minifying specific admin pages?"

So I added the code below to my functions.php file but it looks like it's still optimizing. Did I do this correctly?

// add_filter('autoptimize_filter_noptimize','my_ao_noptimize',10,0);
function my_ao_noptimize() {
	if (strpos($_SERVER['REQUEST_URI'],'?fl_builder')!==false) {
		return true;
	} else {
		return false;
	}
}