RES Image Auto Expand UserScript

RESImageAutoExpand.user.js

// ==UserScript==
// @name        RES Image Auto Expand
// @author      rjf89
// @namespace   RESImageAutoExpand
// @description Automatically expands images in Reddit when using the RES plugin.
// @include     https://reddit.com/r/*
// @include     https://*.reddit.com/r/*
// @version     1.0
// ==/UserScript==

(function() {
  "use strict";
  document.querySelectorAll('a.expando-button.toggleImage.image').forEach(m => m.click())
  new MutationObserver(ms =>
    ms
      .flatMap(m => [...m.target.querySelectorAll('a.expando-button.toggleImage.image'), ...m.addedNodes, m.target])
      .filter(m => m.nodeType == 1)
      .filter(m => m.classList && m.classList.contains('expando-button'))
      .filter(m => m.classList && m.classList.contains('toggleImage'))
      .filter(m => m.classList && m.classList.contains('image'))
      .filter(m => m.classList && !m.classList.contains('video'))
      .filter(m => m.classList && m.classList.contains('collapsed'))
      .filter(m => m.classList && m.classList.contains('collapsedExpando'))
      .forEach(m => m.click())
  ).observe(document, { childList: true, subtree: true });
})();