From 0fdf268ba8a8cd1cc22ad6f9648bf887cea3f7db Mon Sep 17 00:00:00 2001
From: Ben Roth <spongebucket@gmail.com>
Date: Thu, 14 Sep 2017 10:31:00 -0700
Subject: [PATCH] Avoid trying to load photo library assets with nil image url

---
 Libraries/CameraRoll/RCTPhotoLibraryImageLoader.m | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Libraries/CameraRoll/RCTPhotoLibraryImageLoader.m b/Libraries/CameraRoll/RCTPhotoLibraryImageLoader.m
index b99ac934fedc15..0c2adb7f5206df 100644
--- a/Libraries/CameraRoll/RCTPhotoLibraryImageLoader.m
+++ b/Libraries/CameraRoll/RCTPhotoLibraryImageLoader.m
@@ -44,7 +44,10 @@ - (RCTImageLoaderCancellationBlock)loadImageForURL:(NSURL *)imageURL
   // form of an, NSURL which is what assets-library uses.
   NSString *assetID = @"";
   PHFetchResult *results;
-  if ([imageURL.scheme caseInsensitiveCompare:@"assets-library"] == NSOrderedSame) {
+  if (!imageURL) {
+    completionHandler(RCTErrorWithMessage(@"Cannot load a photo library asset with no URL"), nil);
+    return ^{};
+  } else if ([imageURL.scheme caseInsensitiveCompare:@"assets-library"] == NSOrderedSame) {
     assetID = [imageURL absoluteString];
     results = [PHAsset fetchAssetsWithALAssetURLs:@[imageURL] options:nil];
   } else {