From 9ae8f974253f7d91f236cdfaf9657b4ad08c3c56 Mon Sep 17 00:00:00 2001
From: molon <dudl@qq.com>
Date: Wed, 8 Apr 2015 18:24:52 +0800
Subject: [PATCH] failedURLs can be removed at the appropriate time.

---
 SDWebImage/SDWebImageManager.m | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
index 4a94a792..efaf9a0e 100644
--- a/SDWebImage/SDWebImageManager.m
+++ b/SDWebImage/SDWebImageManager.m
@@ -199,6 +199,12 @@
                     }
                 }
                 else {
+                    if ((options & SDWebImageRetryFailed)) {
+                        @synchronized (self.failedURLs) {
+                            [self.failedURLs removeObject:url];
+                        }
+                    }
+                    
                     BOOL cacheOnDisk = !(options & SDWebImageCacheMemoryOnly);
 
                     if (options & SDWebImageRefreshCached && image && !downloadedImage) {