Production & Dev instance favicon

Replaces your favicon if you are on the dev or prod instance of your web app (not on localhost)

// ==UserScript==
// @name         Production & Dev instance favicon
// @namespace    ahappyviking
// @version      1.0.0
// @description  Replaces your favicon if you are on the dev or prod instance of your web app (not on localhost)
// @match        https://*.[APP NAME HERE].com/*
// @icon         https://i.kym-cdn.com/entries/icons/original/000/027/475/Screen_Shot_2018-10-25_at_11.02.15_AM.png
// @grant        none
// ==/UserScript==

const main = () => {
  let icon = ""
  if (window.location.hostname.startsWith("dev")) {
    icon = "data:image/png;base64,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";
  } else {
    icon = "data:image/png;base64,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"
  }

  const favicon = document.querySelector('link[rel~="icon"]');
  const clone = favicon.cloneNode(true);
  clone.href = icon
  const faviconParent = favicon.parentNode
  faviconParent.removeChild(favicon);
  faviconParent.appendChild(clone)
}

window.addEventListener('load', function () {
  main()
}, false);