title: NWJS can't re-save file
body: <p>I have nwjs app, and i want save file. So I have code like this:</p>
  
  <pre><code>try {
      fs.writeFileSync(this.value, data);
  } catch (e) {
      alert(e);
  }
  </code></pre>
  
  <p>and it's good. But when I want re-save data in the same file, it's not working. No error but no new data in file to.</p>