From 691873117a21143da877d7ad48d350b2362571a8 Mon Sep 17 00:00:00 2001
From: DreamPiggy <lizhuoli1126@126.com>
Date: Tue, 2 Apr 2019 16:32:15 +0800
Subject: [PATCH] Fix the logic to check loaders. Find the correct loader first
 and then check if optional protocol method is implemented

---
 SDWebImage/SDImageLoadersManager.m | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/SDWebImage/SDImageLoadersManager.m b/SDWebImage/SDImageLoadersManager.m
index dd99c31c..680b9a7a 100644
--- a/SDWebImage/SDImageLoadersManager.m
+++ b/SDWebImage/SDImageLoadersManager.m
@@ -103,11 +103,12 @@
 - (BOOL)shouldBlockFailedURLWithURL:(NSURL *)url error:(NSError *)error {
     NSArray<id<SDImageLoader>> *loaders = self.loaders;
     for (id<SDImageLoader> loader in loaders.reverseObjectEnumerator) {
-        if (![loader respondsToSelector:@selector(shouldBlockFailedURLWithURL:error:)]) {
-            break;
-        }
         if ([loader canRequestImageForURL:url]) {
-            return [loader shouldBlockFailedURLWithURL:url error:error];
+            if ([loader respondsToSelector:@selector(shouldBlockFailedURLWithURL:error:)]) {
+                return [loader shouldBlockFailedURLWithURL:url error:error];
+            } else {
+                return NO;
+            }
         }
     }
     return NO;