remove tracking parameters from current url

TrackingParameterRemover.user.js

// ==UserScript==
// @name        TrackingParameterRemover
// @namespace   https://htsign.hateblo.jp
// @version     20220317-rev1
// @description remove tracking parameters
// @author      htsign
// @match       *://*/*
// @run-at      document-start
// @grant       none
// @updateURL   https://gist.github.com/htsign/455bd76d107be1f810c5caa4072c8275/raw/TrackingParameterRemover.user.js
// @downloadURL https://gist.github.com/htsign/455bd76d107be1f810c5caa4072c8275/raw/TrackingParameterRemover.user.js
// ==/UserScript==

(function() {
  'use strict';

  const TRACKING_TAGS = [
    '#?utm_campaign',
    '#?utm_content',
    '#?utm_int',
    '#?utm_medium',
    '#?utm_source',
    '_hsmi',
    '_openstat',
    'action_object_map',
    'action_ref_map',
    'action_type_map',
    'fb_action_ids',
    'fb_action_types',
    'fb_ref',
    'fb_source',
    'ga_campaign',
    'ga_content',
    'ga_medium',
    'ga_place',
    'ga_source',
    'ga_term',
    'gs_l',
    'guccounter',
    'guce_referrer',
    'guce_referrer_sig',
    'gws_rd',
    'hmb_campaign',
    'hmb_medium',
    'hmb_source',
    'ref_src',
    'ref_url',
    'utm_campaign',
    'utm_cid',
    'utm_content',
    'utm_int',
    'utm_medium',
    'utm_name',
    'utm_place',
    'utm_pubreferrer',
    'utm_reader',
    'utm_source',
    'utm_swu',
    'utm_term',
    'utm_userid',
    'utm_viz_id',
    'yclid',
    'cx_part@www.afpbb.com',
    'pd_rd_*@amazon.*',
    '_encoding@amazon.*',
    'psc@amazon.*',
    'rm@digital.asahi.com',
    'iref@www.asahi.com',
    'ref@www.asahi.com',
    'spJobID@www.asahi.com',
    'spMailingID@www.asahi.com',
    'spReportId@www.asahi.com',
    'spUserID@www.asahi.com',
    'callback@bilibili.com',
    'cvid@bing.com',
    'form@bing.com',
    'pq@bing.com',
    'qs@bing.com',
    'sc@bing.com',
    'sk@bing.com',
    'sp@bing.com',
    'algorithm@www.change.org',
    'grid_position@www.change.org',
    'algorithm@www.change.org',
    'grid_position@www.change.org',
    'j@www.change.org',
    'jb@www.change.org',
    'l@www.change.org',
    'mid@www.change.org',
    'original_footer_petition_id@www.change.org',
    'placement@www.change.org',
    'pt@www.change.org',
    'sfmc_sub@www.change.org',
    'source_location@www.change.org',
    'u@www.change.org',
    'bi?@google.*',
    'client@google.*',
    'dpr@google.*',
    'ei@google.*',
    'gws_rd@google.*',
    'oq@google.*',
    'sa@google.*',
    'sei@google.*',
    'source@google.*',
    'tbm@google.*',
    'ved@google.*',
    'ncid@huffingtonpost.jp',
    'fbclid@itmedia.co.jp',
    'word_result@nhk.or.jp',
    'ref@*.nicovideo.jp',
    'news_ref@news.nicovideo.jp',
    'n_cid@nikkeibp.co.jp',
    'n_cid@nikkei.com',
    'position@sourceforge.net',
    'source@sourceforge.net',
    'feature@youtube.com',
    'gclid@youtube.com',
    'kw@youtube.com',
  ];

  const removeTracking = loc => {
    let locationChanged = false;
    const escapables = Object.freeze({
      '.': '\.',
    });
    const wildcardCharacters = Object.freeze({
      '*': '.*',
      '?': '.',
    });
    const wildcardKeys = Object.keys(wildcardCharacters);
    const toRegExp = pattern => {
      const replace = (table, s) => Object.entries(table).reduce((acc, [f, t]) => acc.split(f).join(t), s);
      const sanitized = replace(escapables, pattern);
      const inner = replace(wildcardCharacters, sanitized);
      return new RegExp('^' + inner + '$', 'i');
    };
    const match = (pattern, s) => {
      if (wildcardKeys.some(c => pattern.includes(c))) {
        return toRegExp(pattern).test(s);
      }
      return pattern === s;
    };
    const deleteKeys = (domain, params, pattern) => {
      if (!domain || loc.hostname.split('.').some((_, i, arr) => match(arr.slice(i).join('.'), domain))) {
        for (const key of params.keys()) {
          if (match(pattern, key)) {
            params.delete(key);
            locationChanged = true;
          }
        }
      }
      return params.toString().split('%25').join('%');
    };
    const proc = (search, callback) => {
      const params = new URLSearchParams(search);
      if ([...params.values()].join('') === '') return;
      callback(params);
    };

    const url = new URL(loc);
    url.search = url.search.split('%25').join('\0'); // avoid to escape of original '%25'
    TRACKING_TAGS.forEach(tag => {
      const [t, domain] = tag.split('@');
      if (t.startsWith('#?')) {
        proc(url.hash.slice(1), params => {
          url.hash = deleteKeys(domain, params, t.slice(2));
        });
      }
      else {
        if (!url.search) return;
        proc(url.search.slice(1).replace(/%(?!25)/g, '%25'), params => {
          url.search = deleteKeys(domain, params, t);
        });
      }
    });
    url.search = url.search.split('%00').join('%25'); // restore original '%25'
    return { url: url.href, locationChanged };
  };

  const { url, locationChanged } = removeTracking(location);
  if (locationChanged) {
    console.info(`TrackingParameterRemover: {${location.href}} => {${url}}`);
    location.replace(url);
  }
}());

The script does not work with links pasted by the Augmented Steam add-on. Links like https://steamdb.info/app/.../?utm_source=Steam&utm_medium=Steam&utm_campaign=SteamDB%20Extension and https://pcgamingwiki.com/api/appid.php?appid=...&utm_source=Steam&utm_medium=Steam&utm_campaign=SteamDB%20Extension remain unchanged. Mozilla Firefox 111.0b5 (64-bit), Tampermonkey 4.18.1 (January 17, 2023).

@Korb Thanks for your report.
I tried that, but not working as you said. It seems not other userscripts with @include * don't work in this situation too, so probrems are on AugmentedSteam or TamperMonkey side, maybe.