I'm puzzled by the limitation of AJAX requests to the same domain. Can you explain the reasoning behind this restriction?
I don't understand why requesting files from external locations is an issue, especially since servers making XMLHTTP requests can send and receive data from external locations without any problem.
Imagine this scenario:
You visit my fantastic website www.halfnakedgirls.com. While you're engrossed in what appears to be technical information on human physiology, unbeknownst to you, hidden lines of JavaScript are quietly making requests to another domain, such as www.yourpaypallike.com.
These requests may look something like
http://www.yourpaypallike.com/account/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c3b7b1a2adb0a5a6b1fcb7acfea1a2a7a4b6ba83a6b5aaafb4a6a1b0aab7a6eda0acae">[email protected]</a>&amount=984654http://www.mymailprovider.com/mails/export?format=csvDo you understand now why this is prohibited? =)
Hey Tom, it's not just a simple case of "Ajax request limited". The issue lies in the fact that AJAX is rooted in JavaScript, and for security reasons, JavaScript is restricted from accessing content across different domains. However, there is a workaround available if you're determined to make cross domain Ajax requests.
Here's how it can be done:
YourPage(Ajax) ----> YourServer ----> ExternalDomain
By utilizing a server-side hack, you can have your domain make a call to your server which in turn communicates with the external domain to retrieve the desired data. This way, the request made to the ExternalDomain server won't include any cookies stored for ExternalDomain in your browser's memory. This setup ensures that the request is initiated by your server and not your browser.
To ensure security, limitations are in place to prevent websites from making AJAX calls to any domain from the client side. This is done to mitigate potential risks.
However, there are methods to work around this restriction. One way is to have your AJAX call a PHP script on the same domain, which can then communicate with a script on another domain and retrieve the information. In this scenario, the web server is used as the intermediary instead of the browser.
Provided below is a link that will help address your query: http://en.wikipedia.org/wiki/Same_origin_policy
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