Show a growl message
Use the maintained growl action with the normal browser assets.
Start from a working Zotonic page whose base template includes the site's standard browser scripts and script output. Do not copy an old z.notice.js path or load a second jQuery version.
{% button text="Show message" action={growl text="Your changes were saved."} %}
Click the button and check that the message appears. This example demonstrates the action only; a real save handler should add a success message after persistence succeeds. From an Erlang event handler, return the context from z_render:growl(<<"Your changes were saved.">>, Context).
If nothing happens, check the browser console, the site's base-template script includes, and whether mod_wires is active. Do not solve a missing script dependency by embedding an obsolete standalone plugin.