MediaWiki:Common.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

• Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
• Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
• Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
• Opera: Press Ctrl-F5.

/* Any JavaScript here will be loaded for all users on every page load. */
const observer = new MutationObserver((mutations) => {
    mutations.forEach((mutation) => {
        mutation.addedNodes.forEach((node) => {
            if (node.tagName === 'VIDEO') {
                node.setAttribute('preload', 'none');
            }
        });
    });
});

// Start observing the document for changes?
observer.observe(document.body, { childList: true, subtree: true });