From 0e90603d945aead0dc774dcf96c43a85c3397283 Mon Sep 17 00:00:00 2001
From: "James M. Greene" <JamesMGreene@github.com>
Date: Fri, 2 Jul 2021 14:42:42 -0500
Subject: [PATCH] Only send beacons if the feature is not disabled (#20282)

Fixes https://github.com/github/docs-internal/issues/20263
---
 javascripts/events.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/javascripts/events.ts b/javascripts/events.ts
index db0abac290..f29321d369 100644
--- a/javascripts/events.ts
+++ b/javascripts/events.ts
@@ -103,8 +103,13 @@ export function sendEvent({ type, version = '1.0.0', ...props }: SendEventProps)
 
     ...props,
   }
-  const blob = new Blob([JSON.stringify(body)], { type: 'application/json' })
-  navigator.sendBeacon('/events', blob)
+
+  // Only send the beacon if the feature is not disabled in the user's browser
+  if (navigator?.sendBeacon) {
+    const blob = new Blob([JSON.stringify(body)], { type: 'application/json' })
+    navigator.sendBeacon('/events', blob)
+  }
+
   return body
 }