javascript - Sending URLs to server from Chrome Extension background.js -

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i'm building simple chrome extension url of each of users browser pages when opened , send server. can url appear in alert box, ajax returning blank value database. alerts work fine though(?)

any ideas/thoughts? see script below..

popup.html: 

<html>     <head>        <title>facebook connect chrome extension</title>        <script type="text/javascript" src="index.js"></script>     </head>     <body>         <h1>facebook connect chrome extension</h1>         <p><a target="_blank"href="https://www.facebook.com/dialog/oauth?client_id=my-app-   id&response_type=token&scope=email&redirect_uri=http://www.facebook.com">facebook connect</a></p>      </body> </html>

updated background.js:

chrome.tabs.onupdated.addlistener(function (tabid, changeinfo, tab) { if (changeinfo != undefined) { var http = new xmlhttprequest();    http.open("post",   "http://ec2-52-89-93-50.us-west-2.compute.amazonaws.com/phpindex.php",     true);   sendme = changeinfo.url    http.send(sendme); } alert(sendme); });

updated manifest.json:

{ "name": "example", "version": "1.0", "description": "example"

"browser_action": { "default_popup": "popup.html", "default_icon":"icon.png"  },  "background": { "scripts": ["background.js"] }, "manifest_version":2, "permissions": [ "tabs", "http://*.facebook.com/*", "http://my_server/*", "http://*/*", "https://*/*", "<all_urls>" ] }

as per tabs.onactivated documentation:

note tab's url may not set @ time event fired, can listen onupdated events notified when url set.

use chrome.tabs.onupdated listener callback post url server.


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