1 files changed, 1 insertions, 1 deletions
diff --git a/devtools/shared/network-observer/test/browser/doc_network-observer.html b/devtools/shared/network-observer/test/browser/doc_network-observer.html
index 2ca400e0ae..78d751dfac 100644
--- a/devtools/shared/network-observer/test/browser/doc_network-observer.html
+++ b/devtools/shared/network-observer/test/browser/doc_network-observer.html
@@ -36,7 +36,7 @@
                   }, { once: true });
                 }
               });
-            }).catch(err => {
+            }).catch(() => {
               console.error("Registration failed");
             });
         }