<h4>Groups — Dropzone Init Fix</h4><ul><li><strong>Fixed:</strong> Uncaught Error: Invalid dropzone element on invite page (action=invite). The <code>newsfeed_js.php</code> initializes <code>new Dropzone('#dropzone')</code> on every page load, but the <code>#dropzone</code> HTML element only exists on the newsfeed/post view — not on invite, edit, events, or settings subpages. Added <code>if (\!document.getElementById('dropzone')) return;</code> guard before initialization.</li></ul><p><strong>File:</strong> platform/module/GroupsManager/newsfeed_js.php (line 118)</p>