diff --git a/AFNetworking/UIImageView+AFNetworking.m b/AFNetworking/UIImageView+AFNetworking.m
index 91919ca..2e8b9c1 100644
--- a/AFNetworking/UIImageView+AFNetworking.m
+++ b/AFNetworking/UIImageView+AFNetworking.m
@@ -1,17 +1,17 @@
 // UIImageView+AFNetworking.m
 //
 // Copyright (c) 2011 Gowalla (http://gowalla.com/)
-// 
+//
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
-// 
+//
 // The above copyright notice and this permission notice shall be included in
 // all copies or substantial portions of the Software.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -63,7 +63,7 @@ static char kAFImageRequestOperationObjectKey;
         _af_imageRequestOperationQueue = [[NSOperationQueue alloc] init];
         [_af_imageRequestOperationQueue setMaxConcurrentOperationCount:NSOperationQueueDefaultMaxConcurrentOperationCount];
     });
-    
+
     return _af_imageRequestOperationQueue;
 }
 
@@ -73,7 +73,7 @@ static char kAFImageRequestOperationObjectKey;
     dispatch_once(&oncePredicate, ^{
         _af_imageCache = [[AFImageCache alloc] init];
     });
-    
+
     return _af_imageCache;
 }
 
@@ -83,34 +83,34 @@ static char kAFImageRequestOperationObjectKey;
     [self setImageWithURL:url placeholderImage:nil];
 }
 
-- (void)setImageWithURL:(NSURL *)url 
+- (void)setImageWithURL:(NSURL *)url
        placeholderImage:(UIImage *)placeholderImage
 {
     NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
     [request setHTTPShouldHandleCookies:NO];
     [request addValue:@"image/*" forHTTPHeaderField:@"Accept"];
-    
+
     [self setImageWithURLRequest:request placeholderImage:placeholderImage success:nil failure:nil];
 }
 
-- (void)setImageWithURLRequest:(NSURLRequest *)urlRequest 
-              placeholderImage:(UIImage *)placeholderImage 
+- (void)setImageWithURLRequest:(NSURLRequest *)urlRequest
+              placeholderImage:(UIImage *)placeholderImage
                        success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image))success
                        failure:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error))failure
 {
     [self cancelImageRequestOperation];
-    
+
     UIImage *cachedImage = [[[self class] af_sharedImageCache] cachedImageForRequest:urlRequest];
     if (cachedImage) {
         self.image = cachedImage;
         self.af_imageRequestOperation = nil;
-        
+
         if (success) {
             success(nil, nil, cachedImage);
         }
     } else {
         self.image = placeholderImage;
-        
+
         AFImageRequestOperation *requestOperation = [[AFImageRequestOperation alloc] initWithRequest:urlRequest];
         [requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
             if ([[urlRequest URL] isEqual:[[self.af_imageRequestOperation request] URL]]) {
@@ -121,7 +121,7 @@ static char kAFImageRequestOperationObjectKey;
                 }
 
                 if (self.af_imageRequestOperation == operation) {
-                  self.af_imageRequestOperation = nil;
+                    self.af_imageRequestOperation = nil;
                 }
             }
 
@@ -133,7 +133,7 @@ static char kAFImageRequestOperationObjectKey;
                 }
 
                 if (self.af_imageRequestOperation == operation) {
-                  self.af_imageRequestOperation = nil;
+                    self.af_imageRequestOperation = nil;
                 }
             }
         }];
@@ -167,7 +167,7 @@ static inline NSString * AFImageCacheKeyFromURLRequest(NSURLRequest *request) {
         default:
             break;
     }
-    
+
 	return [self objectForKey:AFImageCacheKeyFromURLRequest(request)];
 }