MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
mw.hook('wikipage.content').add(function($content) {
  $content.find('*').each(function(_, el) {
    const style = el.getAttribute('style');
    if (!style) return;
    if (/\b(red)\b/i.test(style) && (/\bborder\b|\boutline\b|\bbox-shadow\b/i.test(style))) {
      el.removeAttribute('style');
    }
  });
});
(function() {
  const stripRedInline = el => {
    const s = el.getAttribute('style');
    if (!s) return;
    if (/\b(red)\b/i.test(s) && (/\bborder\b|\boutline\b|\bbox-shadow\b/i.test(s))) {
      el.removeAttribute('style');
    }
  };

  const obs = new MutationObserver(muts => {
    for (const m of muts) {
      if (m.type === 'attributes' && m.attributeName === 'style') {
        stripRedInline(m.target);
      }
      m.addedNodes.forEach(node => {
        if (node.nodeType === 1) {
          stripRedInline(node);
          node.querySelectorAll?.('*').forEach(stripRedInline);
        }
      });
    }
  });

  obs.observe(document.documentElement, {
    attributes: true,
    attributeFilter: ['style'],
    subtree: true,
    childList: true
  });

  // Initial sweep
  document.querySelectorAll('*').forEach(stripRedInline);
})();