title: Selenium: chrome driver makes screenshot just of visible part of page
body: <p>I need to do screenshot of full page using chrome driver, but it makes it partly.</p>
  
  <pre><code>File screenshotFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
  </code></pre>
  
  <p>The screenshot looks as visible rectangle with correct information and big black area below.</p>