From 1bb30147d36ea71e4cfa159594e4c3e63a9745ce Mon Sep 17 00:00:00 2001
From: Ben Lesh <ben@benlesh.com>
Date: Mon, 13 Aug 2018 19:39:18 -0700
Subject: [PATCH] fix(ivy): add typeof guard around ngDevMode for instances
 where we cannot set it in Node (#25475)

PR Close #25475
---
 packages/core/src/render3/definition.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/core/src/render3/definition.ts b/packages/core/src/render3/definition.ts
index ead1db96c9..b332bcdb15 100644
--- a/packages/core/src/render3/definition.ts
+++ b/packages/core/src/render3/definition.ts
@@ -19,8 +19,10 @@ import {CssSelectorList, SelectorFlags} from './interfaces/projection';
 
 const EMPTY: {} = {};
 const EMPTY_ARRAY: any[] = [];
-ngDevMode && Object.freeze(EMPTY);
-ngDevMode && Object.freeze(EMPTY_ARRAY);
+if (typeof ngDevMode !== 'undefined' && ngDevMode) {
+  Object.freeze(EMPTY);
+  Object.freeze(EMPTY_ARRAY);
+}
 let _renderCompCount = 0;
 
 /**