title: Simple example with window.requestFileSystem() function
body: <p>I have next problem: I try to use <code>window.requestFileSystem()</code> function in Chrome, but it failed. Look for my steps: </p>
  
  <p>1)I added 'allow file access from file' flag to Chrome(see img bellow):<img src="https://i.stack.imgur.com/QSwiY.jpg" alt="enter image description here"></p>
  
  <p>2)I restarted the system.</p>
  
  <p>3)Then I ran the Chrome with 'allow file access file' flag.</p>
  
  <p>4) After all I try to launch this sample code:</p>
  
  <pre><code>function onInitFs(fs) {
    console.log('Opened file system: ' + fs.name);
  }
  
      function errorHandler(e)
  {
      console.log("Error");
  }    
      window.requestFileSystem(window.TEMPORARY, 5*1024*1024 /*5MB*/, onInitFs, errorHandler);
  </code></pre>
  
  <p>but It failed:
  <img src="https://i.stack.imgur.com/bm26V.jpg" alt="enter image description here"></p>
  
  <p>What's wrong in my actions?</p>