title: jQuery.trigger('click') doesn't work in Chrome Extension on Mac
body: <p>since my Chrome Extension didn't work under Mac I broke the code down and found the problem:</p>
  
  <p><em>background.js</em></p>
  
  <pre><code>chrome.browserAction.onClicked.addListener(function(tab){
      alert("Goin to");
      chrome.tabs.executeScript(tab.id, {file: "script.js"});
  });
  </code></pre>
  
  <p><em>script.js</em></p>
  
  <pre><code>$('#Hoster_30').trigger('click');
  alert("Clicked");
  </code></pre>
  
  <p>jQuery is loaded and both alerts are shown, but the click event isn't triggered. It works fine when I directly enter the trigger in the js console on the page and under Windows it also works in the add on.</p>
  
  <p>Here my <em>manifest.json</em></p>
  
  <pre><code>{
      "name": "MacAddon",
      "version": "0.1",
      "permissions": ["tabs", "http://*/", "https://*/"],
      "background": {
          "scripts": ["background.js"]
      },  
      "browser_action": {
          "default_title": "MacAddon"
      },
      "content_scripts": [
      {
        "matches": ["http://*.kinox.to/*", "http://*.streamcloud.eu/*"],
        "js": ["jquery.js"]
      }
      ]
  }
  </code></pre>