Userscript to get original images from portfolio.commishes.com

script.js

// ==UserScript==
// @name         Portfolio Original Images
// @namespace    https://e621.net/users/601225
// @version      0.1
// @description  Replaces the preview image with original quality on portfolio.commishes.com
// @author       faucet
// @match        https://portfolio.commishes.com/upload/show/*
// @icon         https://portfolio.commishes.com/assets/img/logo.png
// @grant        none
// ==/UserScript==

(function() {
  'use strict';

  const script_containing_id = document.evaluate("//script[contains(text(), '/upload/tag/')]", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue.textContent;
  const match = script_containing_id.match(/\/(\d+)\/remove\//);

  if (match && match.length > 1) {
    const original_image_id = match[1];
    console.log("Original Image ID:", original_image_id);
    document.getElementById("preview").src = `https://portfolio.commishes.com/image/${original_image_id}/original/`;
  }
  else {
    console.log("Error: Original image ID not found");
    document.getElementById("preview-container").append("Error: Original image ID not found");
  }
})();