From a6c4490fceb14ad8be3863164b0a112e790e320b Mon Sep 17 00:00:00 2001
From: Bowen Ni <bowen1897@gmail.com>
Date: Tue, 22 Nov 2016 15:06:09 -0800
Subject: [PATCH] Check if `console.error` is defined

---
 .../platform-browser/src/browser/tools/common_tools.ts     | 3 +--
 modules/@angular/upgrade/src/util.ts                       | 7 ++++++-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/modules/@angular/platform-browser/src/browser/tools/common_tools.ts b/modules/@angular/platform-browser/src/browser/tools/common_tools.ts
index 852ffba1b8..24bffe74d4 100644
--- a/modules/@angular/platform-browser/src/browser/tools/common_tools.ts
+++ b/modules/@angular/platform-browser/src/browser/tools/common_tools.ts
@@ -36,6 +36,7 @@ export class AngularProfiler {
 
   constructor(ref: ComponentRef<any>) { this.appRef = ref.injector.get(ApplicationRef); }
 
+  // tslint:disable:no-console
   /**
    * Exercises change detection in a loop and then prints the average amount of
    * time in milliseconds how long a single round of change detection takes for
@@ -75,9 +76,7 @@ export class AngularProfiler {
       (<any>window.console.profileEnd)(profileName);
     }
     const msPerTick = (end - start) / numTicks;
-    // tslint:disable-next-line:no-console
     window.console.log(`ran ${numTicks} change detection cycles`);
-    // tslint:disable-next-line:no-console
     window.console.log(`${msPerTick.toFixed(2)} ms per check`);
 
     return new ChangeDetectionPerfRecord(msPerTick, numTicks);
diff --git a/modules/@angular/upgrade/src/util.ts b/modules/@angular/upgrade/src/util.ts
index 744d3a4865..12bf5aa057 100644
--- a/modules/@angular/upgrade/src/util.ts
+++ b/modules/@angular/upgrade/src/util.ts
@@ -15,7 +15,12 @@ export function stringify(obj: any): string {
 
 export function onError(e: any) {
   // TODO: (misko): We seem to not have a stack trace here!
-  console.error(e, e.stack);
+  if (console.error) {
+    console.error(e, e.stack);
+  } else {
+    // tslint:disable-next-line:no-console
+    console.log(e, e.stack);
+  }
   throw e;
 }