WYGIWYH/app/templates/includes/scripts/hyperscript/htmx_error_handler.html

{% load i18n %}
<script type="text/hyperscript">
  behavior htmx_error_handler
    on htmx:responseError or htmx:afterRequest[detail.failed] or htmx:sendError queue none
      call Swal.fire({title: '{% trans 'Something went wrong loading your data' %}',
                      text: '{% trans 'Try reloading the page or check the console for more information.' %}',
                      icon: 'error',
                      customClass: {
                        confirmButton: 'btn btn-primary'
                      },
                      buttonsStyling: true})
      then log event
      then halt the event
  end
</script>