title: Cannot read property 'querySelector' of null - WordPress / Contact Form 7
body: <p>Seem to be getting an error on our contact forms on version 5.4.1 and the version before using the Contact Form 7 plugin on WordPress. The error occurs when submitting the form regardless of entering information or not. The error which appears in console is as follows:</p>
  <pre><code>TypeError: Cannot read property 'querySelector' of null
  at c (index.js?ver=5.4.1:1)
  at Array.forEach (&lt;anonymous&gt;)
  at index.js?ver=5.4.1:1
  </code></pre>
  <p>Read a couple of articles about rolling back to version 5.3.2 which I can confirm works and the issue isn't present in this version. Does anyone have a fix for it though? Or do we need to wait for another update? It's been a couple of weeks now since this was first found I believe.</p>
  <p>If anyone needs any other information please let me know and I'll try to supply it.</p>
  <p>Thanks!</p>