title: How to use popup.html from URL in Chrome Extension?
body: <p>I want to create an extension for Google Chrome, and it will be real simple.</p>
  
  <p>I will have a database on my website's server, it will check if a URL is in the "blacklist" table, and warn the user if it is.</p>
  
  <p>But I don't know where to start. I tried putting all the files on my web server, and changin the manifest.json file as such:
  (changed the "default_popup" line)</p>
  
  <pre><code>{
    "manifest_version": 2,
  
    "name": "My Extension",
    "description": "This extension warns you if you are trying to open a blacklisted URL",
    "version": "1.0",
  
    "browser_action": {
      "default_icon": "icon.png",
      "default_popup": "http://www.mysite.com/my_extension/popup.html"
    },
    "permissions": [
      "https://secure.flickr.com/"
    ]
  }
  </code></pre>
  
  <p><strong>Note</strong> : this file resides on my computer, I load it from the "Extensions" menu of Chrome.</p>
  
  <p>but when I tried to install this extension, I got the error :</p>
  
  <pre><code>This web page could not be found:chrome-extension://hgfdjnsakhkijfmdnadmlacgjggggkpf/http://www.mysite.com/my_extension/popup.html
  </code></pre>