From 4d879e4cb1a7a443926802075962feb1efc5af6a Mon Sep 17 00:00:00 2001
From: Abdullah M <abbdullah1@hotmail.com>
Date: Thu, 18 Apr 2019 10:19:31 +0800
Subject: [PATCH] Add check to prevent CFRelease(NULL) crash for mimeType

---
 ios/RNCAssetsLibraryRequestHandler.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ios/RNCAssetsLibraryRequestHandler.m b/ios/RNCAssetsLibraryRequestHandler.m
index 82ee4c0..c1f1778 100644
--- a/ios/RNCAssetsLibraryRequestHandler.m
+++ b/ios/RNCAssetsLibraryRequestHandler.m
@@ -101,7 +101,7 @@ RCT_EXPORT_MODULE()
                                                               MIMEType:(__bridge NSString *)(mimeType)
                                                  expectedContentLength:length
                                                       textEncodingName:nil];
-    CFRelease(mimeType);
+    if(mimeType) CFRelease(mimeType);
     
     [delegate URLRequest:cancellationBlock didReceiveResponse:response];