title: Chrome stops download files from StackOverflow snippets
body: <p>In MacOs (HighSierra) on Chrome 83.0 yesterday following code, after run as StackOverflow snippet, automatically download file <code>myFile.json</code> (try yourself)</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>let a = document.createElement('a');
  a.href = "data:application/octet-stream,"+encodeURIComponent('"My DATA"');
  a.download = 'myFile.json';
  a.click();</code></pre>
  </div>
  </div>
  </p>
  
  <p>Today it stops working. I totally don't know why. I check this code on Safari and Firefox - and it works. For Edge (which use chrome under the hood) it not works. JSFiddle version works on Chrome and Edge - <a href="https://jsfiddle.net/Lamik/0pds6t3b/" rel="nofollow noreferrer">here</a>. So the problem appear only on Chrome (and Edge) only for StackOverflow site. Today I go to chrome-console>Application and clean all stackoverflow storage/cookies - not helps. </p>
  
  <p><strong>Question</strong>: Do you can reproduce it and do you have any suggestion what happen and how to fix this?</p>