If you are doing a ajax call to retrieve data from your own server on a platform which is set to prevent these ajax calls . To bypass “Access-Control-Allow-Origin” you need to allow cross domain access by including this in your server php code.
header('Access-Control-Allow-Origin: *');
OR – for only one domain
header('Access-Control-Allow-Origin: http//your-domain.com');
I hope this will help you gain access to you cross-domain data.