The identical web address functions as a point of reference for design, however it does not function as an AJAX request

This piece of code is functioning properly:


      {html}
      {head>
           {**link rel="stylesheet" href="http://localhost:3000/CSS/mystyle.css"**}
      {/head}
      {body}
      {/body}
      {/html}

However, when I use the same URL in this code, it presents an issue: XMLHttpRequest cannot load "href="http://localhost:3000/CSS/mystyle.css". Origin null is not allowed by Access-Control-Allow-Origin.


        $(document).ready(function() {

               var href = 'http://localhost:3000/CSS/mystyle.css';

               $.ajax({
                   url: href,
                  dataType: 'text/css',
                   success: function(data) {
                       $('\n' + data + '').appendTo("head");
                   }
               });
           });

I am truly unsure about what the problem could be, as both are making a similar XMLHttpRequest call. Any help would be greatly appreciated. Thank you.

Answer №1

To easily resolve this issue, consider utilizing a local web server such as WAMP (or IIS) if you haven't already.

Another solution is that Chrome and Safari impose restrictions on using ajax with local resources, resulting in an error message like:

"Origin null is not allowed by Access-Control-Allow-Origin."

Solution: Opt for Firefox or upload your data to a temporary server. If you prefer to continue using Chrome, start it with the following option;

--allow-file-access-from-files

For additional information on adding the above parameter to Chrome: Right click on the Chrome icon in your taskbar, then right click on Google Chrome in the pop-up window and select properties. Add the aforementioned parameter inside the Target textbox under the Shortcut tab. Your command will look similar to the following;

C:\Users\XXX_USER\AppData\Local\Google\Chrome\Application\chrome.exe --allow-file-access-from-files

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