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Editorial Team
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Asked: 2026-05-31T05:29:50+00:00

Manifiest.json { "name":"MyExtension", "version":"1.0", "description":"MyExtension Description.", "icons":{"128":"browseraction.png"}, "browser_action": { "default_icon":"icon.png", "default":"Mi default title", "popup":"popup.html"

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Manifiest.json

    {
        "name":"MyExtension",
        "version":"1.0",
        "description":"MyExtension Description.",
        "icons":{"128":"browseraction.png"},
        "browser_action":
                        {
                            "default_icon":"icon.png",
                            "default":"Mi default title",
                            "popup":"popup.html"
                        },
        "permissions":[
        "http://*/*",
        "tabs"
        ]
    }

and this is my popup.html

<html>
    <head>
        <script type="text/javascript">     
            var address = "http://www.google.com";
            var xhr = new XMLHttpRequest();
            xhr.onreadystatechange = handleStateChange; 
            xhr.open("GET", chrome.extension.getURL(address), true);//This dont work
           //xhr.open("GET", chrome.extension.getURL('/popup1.html'), true);//thisWork
           xhr.send();
           function handleStateChange()
           {
               if (xhr.readyState == 4) 
               {
            
                  alert(xhr.responseText);
               }
               else
               {
                  alert('Not Yet');
               }
           }
        </script>
    </head>
    <body>

    </body>
</html>

I just want display the html code, with alert
I read,http://code.google.com/chrome/extensions/xhr.html , and other resource but just dont work
Thank in advance

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1 Answer

  1. Editorial Team

    Your code does not work, because chrome.extension.getURL does not work as you expect. For a given string, it attempts to resolve the URL to a local file in the chrome extension.

    When http://www.google.com/ is given as input, www.google.com is returned. The XHR request does not complete because the URI is invalid (the protocol [and path] is missing). Also, both the (browser action) popup and Content scripts are restricted by the cross-origin policy.

    To create cross-domain XHR requests, you have to incorporate a Background page and add the URI in manifest.json, at permissions file.

    A full demo is available in this answer:

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