This update changes the version of jQuery from 2.1.1 to 3.3.1 to address a security vulnerability.
Step 1:
On your local WCMS site, navigate to /_includes/javascript.html and edit the file.
Step 2:
Update line 2, the line containing jQuery, to the following:
<script crossorigin="anonymous" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" src="https://code.jquery.com/jquery-3.3.1.min.js?v=2"></script>
Step 3:
Click Submit to save your changes.
Step 4:
Publish the file.