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-rw-r--r--toolkit/components/antitracking/test/browser/tracker.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/antitracking/test/browser/tracker.js b/toolkit/components/antitracking/test/browser/tracker.js
index 85e943f7c4..eeed80a71b 100644
--- a/toolkit/components/antitracking/test/browser/tracker.js
+++ b/toolkit/components/antitracking/test/browser/tracker.js
@@ -1,4 +1,4 @@
-window.addEventListener("message", e => {
+window.addEventListener("message", () => {
let bc = new BroadcastChannel("a");
bc.postMessage("ready!");
});