title: Hide url of chrome extension page when new tab is created
body: <p>I want to create a new tab in google chrome with my extension:</p>
  
  <pre><code>chrome.tabs.create({'url': chrome.extension.getURL('page.html')}, function(page) {
  
     // other code
  
  });
  </code></pre>
  
  <p>But when new page is created the URL looks bad for me, like </p>
  
  <pre><code>chrome-extension://dfdnfdnfjdnkdfndfdf/page.html
  </code></pre>
  
  <p>How to create new tab with empty URL ? </p>
  
  <p>I saw other extensions doing similar</p>