title: Chrome webNavigation.onComplete not working?
body: <p>I'm trying to write a chrome extension that executes some code when the user is on a youtube page with a video. As far as I can tell, my code is correct, but It isn't working.</p>
  
  <p>eventPage.js:</p>
  
  <pre><code>chrome.webNavigation.onCompleted.addListener(function(){
    console.log("Test")
  },{url: [{pathContains: "watch", hostSuffix: "youtube.com"}]});
  </code></pre>
  
  <p>and my manifest file</p>
  
  <pre><code>{
    "manifest_version": 2,
  
    "name": "youtubeExtension",
    "description": "A chrome extension for youtube",
    "version": "0.1",
  
    "permissions": ["https://www.youtube.com/", "webNavigation"],
    "background": {
      "scripts": ["eventPage.js"],
      "persistant": false
    }
  }
  </code></pre>
  
  <p>It seems onCompleted doesn't work on youtube.</p>