My code works perfectly when I use this:
ajax.open("post","a.php",true);
However, the problem arises when I attempt to send data to an external file like this:
ajax.open("post","http://www.example.com/a.php",true);
Unfortunately, it doesn't work in this case. Can anyone suggest a solution?
In order to open the file, you must specify the URL of the server side script. This can either be an absolute URL (such as http://www.foo.com/bar.php) or a relative one (/bar.php). It's important to note that this URL should belong to the same domain as the script itself. You cannot call a script from google.com if it is running on yahoo.com. Most browsers have implemented this security measure to prevent XSS attacks.
Best regards, Cyril
Where is your script running? Is it on www.site.com or another domain? Your code may not be functioning because of security restrictions that prevent AJAX requests to be sent to different domains.
Edit: One solution could involve creating a web service on mysite.com, sending the AJAX request to it. The web service would then act as a proxy, forwarding the original request to othersite.com (on the server-side) and returning the response back to the script running on mysite.com.
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