From 9de3f01f8b5b17c15c4d5faa9ed11aed6e07a01c Mon Sep 17 00:00:00 2001
From: Leo Natan <leo.natan@outlook.com>
Date: Tue, 17 Oct 2017 12:02:18 +0300
Subject: [PATCH] Add fix for Firebase.

Closes #270
---
 detox/ios/Detox/DetoxAppDelegateProxy.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/detox/ios/Detox/DetoxAppDelegateProxy.m b/detox/ios/Detox/DetoxAppDelegateProxy.m
index 54759ecc2d..44b70f3f0f 100644
--- a/detox/ios/Detox/DetoxAppDelegateProxy.m
+++ b/detox/ios/Detox/DetoxAppDelegateProxy.m
@@ -33,7 +33,7 @@ + (void)load
 	void (*orig)(id, SEL, id<UIApplicationDelegate>) = (void*)method_getImplementation(m);
 	method_setImplementation(m, imp_implementationWithBlock(^ (id _self, id<UIApplicationDelegate> origDelegate) {
 		//Only create a dupe class if the provided instance is not already a dupe class.
-		if([origDelegate respondsToSelector:@selector(__dtx_canaryInTheCoalMine)] == NO)
+		if(origDelegate != nil && [origDelegate respondsToSelector:@selector(__dtx_canaryInTheCoalMine)] == NO)
 		{
 			
 			NSString* clsName = [NSString stringWithFormat:@"%@(%@)", NSStringFromClass([origDelegate class]), NSStringFromClass([DetoxAppDelegateProxy class])];