title: how to open pdf file in jupyter file browser?
body: <p>I would like to open a pdf file using the jupyter notebook's file browser. However, when I click, it always opens a new tab and shows a dark screen. </p>
  
  <p><a href="https://i.stack.imgur.com/jV31O.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jV31O.png" alt="enter image description here"></a></p>