Client side JavaScript error logging module allows you to see errors happen on client browser.
To discover problems on server side sometimes quite easy, just check log files (e.g. Apache log) but you do not really know what happen on client side that is like a black box. You can get information based on user feedback if something wrong in the front-end code. This module helps you to keep in touch with your JavaScript code, you will know the possible problems arisen in the users browser. So you can find the problems more easy.
This is a module for substituting a keyword in node's body text with a link.
You can configure an external URL or a internal one.
Works with Drupal 8, 9 & 10