I'm able to get

I'm able to get this popup to work without selecting "on specific url" ... but i only need the popup code activated on a specific url: https://www.wrmeadows.com/c/construction-products/construction-liquids/concrete-sealing-compounds/

click 'request more info' on right menu - it doesn't work right now, but does work when i remove the "on specific url' option. Our host, wp engine, already has the proper php.ini that you suggest (see http://phpinfo55.wpengine.com/); i also added the code below to .htaccess , but that didn't work .

php_flag allow_url_include on
and this didn't work: php_value allow_url_fopen On

Thanks in advance for your help.