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Strip tracking params from links

Removes tracking parameters (utm, bi_s, reco_id) from Allegro product links so copied URLs stay short and clean.

Code to copy

try {
  var junk = ['bi_s', 'bi_m', 'bi_c', 'utm_source', 'utm_medium',
    'utm_campaign', 'utm_term', 'utm_content', 'reco_id', 'sid'];
  document.querySelectorAll('a[href*="allegro.pl"]').forEach(function (a) {
    try {
      var u = new URL(a.href, location.origin);
      junk.forEach(function (p) { u.searchParams.delete(p); });
      a.href = u.toString();
    } catch (e) {}
  });
} catch (e) {}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's JavaScript panel and save — it runs on every page visit.