title: chrome.extension.onRequest listener reach original content
body: <p>I'm using JSONP in a google chrome extension.
  In order to make it work, i had to add</p>
  
  <pre><code>chrome.extension.onRequest.addListener(onRequest);
  </code></pre>
  
  <p>and then make the request like this:</p>
  
  <pre><code>var jsonpURL;
  $(document).ready(function(){
     /* i make the "someurl" here from a div's content */
     jsonpURL="someurl";
     chrome.extension.sendRequest({action:'getJSON',url:jsonpURL});
  });
  </code></pre>
  
  <p>in the listener i'd like to hide some div on the page</p>
  
  <pre><code>function onRequest(request, sender, callback) {
      if (request.action == 'getJSON') {
          $.getJSON(request.url, function(data){
                  // HIDE SOME DIV
          });
      }    
  }
  </code></pre>
  
  <p>the question:</p>
  
  <p>how can i reach the original page's content in the <code>onRequest</code> function? or if i cant at all, how can i hide some divs depending on the result of request?
  i tried jquery selectors and figured out that i reach the bg.htlm, and not the original page.</p>