React Events: check window before using navigator (facebook#15768)

hyyqcweb · May 30, 2019 · 0f7cc2b · 0f7cc2b
1 parent ad9a6df
commit 0f7cc2b
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/packages/react-events/src/Press.js b/packages/react-events/src/Press.js
@@ -101,7 +101,10 @@ type PressEvent = {|
   shiftKey: boolean,
 |};
 
-const isMac = /^Mac/.test(navigator.platform);
+const isMac =
+  typeof window !== 'undefined' && window.navigator != null
+    ? /^Mac/.test(window.navigator.platform)
+    : false;
 const DEFAULT_PRESS_END_DELAY_MS = 0;
 const DEFAULT_PRESS_START_DELAY_MS = 0;
 const DEFAULT_LONG_PRESS_DELAY_MS = 500;