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)
• Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5.

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

if (document.querySelector(".force-vector-night")) {
    const skin = mw.config.get("skin"); // current skin
    const nightModeEnabled = mw.config.get("wgVectorNightMode"); // true if user already has night mode

    // If using Vector and night mode is OFF, switch to night mode
    if (skin === "vector" && !nightModeEnabled) {
        const url = new URL(window.location.href);
        url.searchParams.set("vectornightmode", "1"); // enable night mode

        if (window.location.href !== url.toString()) {
            window.location.replace(url.toString()); // reload page with dark mode
        }
    }
}