Update for cache policy calculation: I think that if SDWebImageDownloaderIgnoreC…

…achedResponse is there, we need NSURLRequestReloadIgnoringLocalCacheData so we always reload.

@@ -166,7 +166,14 @@
         }
 
         // In order to prevent from potential duplicate caching (NSURLCache + SDImageCache) we disable the cache for image requests if told otherwise
-        NSURLRequestCachePolicy cachePolicy = options & SDWebImageDownloaderUseNSURLCache ? NSURLRequestUseProtocolCachePolicy : NSURLRequestReloadIgnoringLocalCacheData;
+        NSURLRequestCachePolicy cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
+        if (options & SDWebImageDownloaderUseNSURLCache) {
+            if (options & SDWebImageDownloaderIgnoreCachedResponse) {
+                cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
+            } else {
+                cachePolicy = NSURLRequestUseProtocolCachePolicy;
+            }
+        }
         NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url
                                                                     cachePolicy:cachePolicy
                                                                 timeoutInterval:timeoutInterval];