MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */

function waitForMathJax($content) {
  if (typeof MathJax === 'undefined') {
    setTimeout(function () { waitForMathJax($content); }, 1000);
    console.log('Waiting for MathJax.');
  } else {
    MathJax.Hub.Queue(["Typeset", MathJax.Hub, $content[0]]).execute();
    console.log('Found MathJax; typeset done.');
  }
}

mw.hook('wikipage.content').add(waitForMathJax);