title: Puppeteer PDF export table headers
body: <p>I am trying to export page with html table to PDF using puppeteer.</p>
  
  <pre><code>  await page.pdf({
      format: 'Letter',
      printBackground: true
    });
  </code></pre>
  
  <p>For some reason it makes table headers sticky, like this:</p>
  
  <p><a href="https://i.stack.imgur.com/ySm9E.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ySm9E.png" alt="enter image description here"></a></p>
  
  <p>I tried 3 different PDF viewes and it's always the same. (ones without continus scrolling just put it on top of every page, but still overriding other text)</p>