Debugging

Targeted approach

If you wish to see what HTMX is doing on a particular element, attach the htmx/debug library in your template or render array and add data-hx-ext="debug" to the element you wish to examine. This enables the debug extension. HTMX will log each action to console.

Global approach

Enable the htmx_debug module. This will replace the standard minified javascript with a standard javascript file so that with Drupal aggregation disabled you can follow logic within HTMX. It will also enable the HTMX debug extension for all body content.