From 02c849bdc8439b652f135c4ddbe98a5d4d4f3749 Mon Sep 17 00:00:00 2001
From: Tom Wanielista <tom@simple.com>
Date: Fri, 27 Apr 2012 11:45:47 -0700
Subject: [PATCH] Fix an issue where the skipped character set points to bad
 memory.

---
 AFNetworking/AFHTTPRequestOperation.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/AFNetworking/AFHTTPRequestOperation.m b/AFNetworking/AFHTTPRequestOperation.m
index 5641aff..67b34bf 100644
--- a/AFNetworking/AFHTTPRequestOperation.m
+++ b/AFNetworking/AFHTTPRequestOperation.m
@@ -29,7 +29,7 @@ NSSet * AFContentTypesFromHTTPHeader(NSString *string) {
     static NSCharacterSet *_skippedCharacterSet = nil;
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
-        _skippedCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@" ,"];
+        _skippedCharacterSet = [[NSCharacterSet characterSetWithCharactersInString:@" ,"] retain];
     });
     
     if (!string) {