From 74df6f66ab2b6cf1857658151f9076c585911b7f Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Mon, 12 Oct 2020 20:10:44 +0200
Subject: README: filter example: strip Facebook fbclid parameter

---
 README | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README b/README
index d026195..693af00 100644
--- a/README
+++ b/README
@@ -295,8 +295,8 @@ advertisements, strip tracking parameters and more.
 
 				# strip tracking parameters
 				# urchin, facebook, piwik, webtrekk and generic.
-				gsub(/\?(ad|campaign|pk|tm|wt)_([^&]+)/, "?", s);
-				gsub(/&(ad|campaign|pk|tm|wt)_([^&]+)/, "", s);
+				gsub(/\?(ad|campaign|fbclid|pk|tm|wt)_([^&]+)/, "?", s);
+				gsub(/&(ad|campaign|fbclid|pk|tm|wt)_([^&]+)/, "", s);
 
 				gsub(/\?&/, "?", s);
 				gsub(/[\?&]+$/, "", s);
-- 
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