User:Parent5446/MediaWiki/GadgetDiffs.js

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/* Diff to previous caption button */
$(function () {
  if (!(hist = document.getElementById('ca-history') )) return;
  mw.util.addPortletLink('p-cactions', mw.config.get('wgServer') + mw.config.get('wgScript') + '?title=' + 
    wgPageName + "&diff=prev&oldid=" + wgCurRevisionId, '-', 'ca-last', 'Show most recent diff');
});