From af7b587936b5f839ce961ef539c7bea0e1bee791 Mon Sep 17 00:00:00 2001
From: Bogdan Poplauschi <bogdan.poplauschi@yardi.com>
Date: Tue, 31 May 2016 14:51:33 +0300
Subject: [PATCH] Fixed #1573 - Update to cc510a6 - Cached file name with path
 extension UIWebView issue - for iOS 7 and above, remove the query from the
 url (prior to iOS 7 the behavior remains the same).

---
 SDWebImage/SDWebImageManager.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
index a905e93..7329f51 100644
--- a/SDWebImage/SDWebImageManager.m
+++ b/SDWebImage/SDWebImageManager.m
@@ -58,7 +58,7 @@
         return self.cacheKeyFilter(url);
     }
     else {
-        if (NSClassFromString(@"NSURLComponents")) {
+        if (NSClassFromString(@"NSURLComponents") && [NSURLComponents instancesRespondToSelector:@selector(string)]) {
             NSURLComponents *urlComponents = [[NSURLComponents alloc] initWithURL:url resolvingAgainstBaseURL:NO];
             urlComponents.query = nil; // Strip out query parameters.
             return urlComponents.string;