From b8d1e9c7bfeb9f6833bd001d55bf9fdd661e0e5d Mon Sep 17 00:00:00 2001
From: Abhijeet Prasad <aprasad@sentry.io>
Date: Wed, 17 Jun 2020 16:04:23 -0400
Subject: [PATCH] fix(apm): Check if performance.mark() exists

---
 CHANGELOG.md                             | 1 +
 packages/apm/src/integrations/tracing.ts | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb29698e4da4..b6e69e9580b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 - [core] fix: Call `bindClient` when creating new `Hub` to make integrations work automatically (#2665)
 - [gatsby] feat: Add @sentry/gatsby package (#2652)
 - [core] ref: Rename `whitelistUrls/blacklistUrls` to `allowUrls/denyUrls`
+- [apm] fix: Check if `performance.mark` exists before calling it (#2680)
 
 ## 5.17.0
 
diff --git a/packages/apm/src/integrations/tracing.ts b/packages/apm/src/integrations/tracing.ts
index a6ce61fe4192..4eb8da1eb624 100644
--- a/packages/apm/src/integrations/tracing.ts
+++ b/packages/apm/src/integrations/tracing.ts
@@ -170,7 +170,9 @@ export class Tracing implements Integration {
    */
   public constructor(_options?: Partial<TracingOptions>) {
     if (global.performance) {
-      global.performance.mark('sentry-tracing-init');
+      if (global.performance.mark) {
+        global.performance.mark('sentry-tracing-init');
+      }
       Tracing._trackLCP();
     }
     const defaults = {