TamperMonkey script to fix Twitter scroll handling on replies

twitter-scroll-restore.js

// ==UserScript==
// @name         Twitter Scroll Restore
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       @kiliman
// @match        https://twitter.com/*
// @icon         https://www.google.com/s2/favicons?domain=twitter.com
// @grant        none
// ==/UserScript==
;(function () {
  'use strict'
  const scrollMap = new Map()
  addEventListener('scroll', () => {
    if (document.location.href.endsWith('/home')) return
    scrollMap.set(document.location.href, window.scrollY)
  })
  addEventListener('popstate', () => {
    if (document.location.href.endsWith('/home')) return
    const scrollY = scrollMap.get(document.location.href) ?? 0
    setTimeout(() => window.scrollTo(0, scrollY), 100)
  })
})()