The error you are getting is because of security restriction that prevents requests being made from one domain to another ie from xxx.sharepoint.com is requesting sms.vietguys.biz . There are couple of ways to overcome this and most commonly used practice is called CORS and another method is by using JSONP

The error you are getting is because of security restriction that prevents requests being made from one domain to another ie from xxx.sharepoint.com is requesting sms.vietguys.biz . To overcome this a commonly used practice is CORS and another method is by using JSONP