From 0b34e67699a0f14850209eb3c5a4c4a1864b9718 Mon Sep 17 00:00:00 2001
From: Deyan Ginev <deyan.ginev@telerik.com>
Date: Mon, 26 Feb 2018 11:47:24 +0200
Subject: [PATCH] fix(inspector): Fix --debug-brk issue with Inspector (#5460)

---
 tns-core-modules/debugger/devtools-elements.common.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tns-core-modules/debugger/devtools-elements.common.ts b/tns-core-modules/debugger/devtools-elements.common.ts
index a046c1928..fc35c6f09 100644
--- a/tns-core-modules/debugger/devtools-elements.common.ts
+++ b/tns-core-modules/debugger/devtools-elements.common.ts
@@ -27,6 +27,10 @@ function getViewById(nodeId: number): ViewBase {
 
 export function getDocument() {
     const topMostFrame = frameTopmost();
+    if (!topMostFrame) {
+        return undefined;
+    }
+    
     try {
         topMostFrame.ensureDomNode();