RemoveSimplify: A GreaseMonkey script that removes URL query parameter values containing the case-insensitive string "simplify", repeating very 5 seconds.

removeSimplify.js

// ==UserScript==
// @name     Remove Simplify
// @version  1
// @grant    none
// @author   Plasmatic (Moses Xu)
// ==/UserScript==

function removeSimplify() {
  // Function to remove a specific query parameter from a URL
  function removeQueryParamByValueContains(url, param) {
    var urlParts = url.split("?");
    if (urlParts.length > 1) {
      var queryParams = urlParts[1].split("&");
      var newParams = queryParams.filter(function(query) {
        var key = query.split("=")[0];
        var value = query.split("=")[1];
        return !value.toLowerCase().includes(param.toLowerCase());
      });
      return urlParts[0] + (newParams.length > 0 ? "?" + newParams.join("&") : "");
    }
    return url;
  }

  // Retrieve the current URL of the browser window
  let currentURL = window.location.href, newURL = removeQueryParamByValueContains(currentURL, "simplify");
  if (currentURL !== newURL) {
    history.pushState(null, null, newURL);
    console.log("REMOVESIMPLIFY: Modified URL from", currentURL, "to", window.location.href);
  }
}

setInterval(removeSimplify, 5000);
console.log("REMOVESIMPLIFY: Script initialized");