title: Electron Updater download-progress Event no getting called
body: <p>I´d like to show a progressbar inside my Electron App while an update gets downloaded. So, I´ve adjusted the example code from the electron-builder updater docs to my needs.</p>
  
  <p>The following is an excerpt from my main.ts:</p>
  
  <pre><code>function sendStatusToWindow(updateState: UpdateState) {
    log.info(updateState);
    win.webContents.send('message', updateState);
  }
  
  autoUpdater.on('checking-for-update', () =&gt; {
    sendStatusToWindow({ status: 'checking' });
  });
  
  autoUpdater.on('update-available', (info) =&gt; {
    sendStatusToWindow({ status: 'update-available' });
  });
  
  autoUpdater.on('update-not-available', (info) =&gt; {
    sendStatusToWindow({ status: 'current' });
  });
  
  autoUpdater.on('error', (err) =&gt; {
    sendStatusToWindow({ status: 'error', error: err });
  });
  
  autoUpdater.on('download-progress', (progressObj) =&gt; {
    log.info(progressObj);
    sendStatusToWindow({
      status: 'downloading',
      download: {
        bytesPerSecond: progressObj.bytesPerSecond,
        percent: progressObj.percent,
        transferred: progressObj.transferred,
        total: progressObj.total
      }
    });
  });
  
  autoUpdater.on('update-downloaded', (info) =&gt; {
    sendStatusToWindow({ status: 'completed' });
  });
  </code></pre>
  
  <p>And my electron-builder.json:</p>
  
  <pre><code>  "win": {
      "icon": "dist",
      "target": ["NSIS"],
      "publish": ["github"]
    }
  </code></pre>
  
  <p>All events are getting called with the exception of <code>download-progress</code>
  Is there anything I´m doing wrong?</p>