Encountering the "Cross-Origin Request Blocked" error on the identical domain

My JavaScript code is designed to call a URL that belongs to the same website, so I'm puzzled as to why it's being flagged as "cross-origin".

This is the AJAX call in my code:

$.ajax({
    url: SITE_URL+'ajax_check.php?p='+P_ID,
    //assuming SITE_URL is http://example.com/dev
    success:function(result){
        alert(result);
    }
});

However, when I check the console in Firebug, I see this error message:

"Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://example.com/dev/ajax_check.php?p=23. This issue can be resolved by either moving the resource to the same domain or enabling CORS."

Answer №1

In accordance with VoteyDisciple's advice, the URL structure must match exactly. I encountered an issue where the page URL included a "www" prefix, but the ajax call URL did not. This resulted in a "cross-origin" problem.

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