Add guard against getEntriesByType

GoogleChrome · Oct 22, 2024 · bc5db2c · bc5db2c
1 parent 1e8b4fe
commit bc5db2c
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/lib/getNavigationEntry.ts b/src/lib/getNavigationEntry.ts
@@ -15,7 +15,11 @@
  */
 
 export const getNavigationEntry = (): PerformanceNavigationTiming | void => {
-  const navigationEntry = performance.getEntriesByType('navigation')[0];
+  // JSDOM does not implement getEntriesByType: https://github.com/jsdom/jsdom/issues/3309
+  const navigationEntry =
+    self.performance &&
+    performance.getEntriesByType &&
+    performance.getEntriesByType('navigation')[0];
 
   // Check to ensure the `responseStart` property is present and valid.
   // In some cases a zero value is reported by the browser (for