githubclj
diff --git a/‎libbrowser/src/libbrowser_uiwebview.mm‎
Lines changed: 32 additions & 9 deletions b/‎libbrowser/src/libbrowser_uiwebview.mm‎
Lines changed: 32 additions & 9 deletions
@@ -16,7 +16,11 @@
 
 #import <Foundation/Foundation.h>
 #import <UIKit/UIKit.h>
+
+/* JSCore not supported on iOS version < 7.0 */
+#ifdef __IPHONE_7_0
 #import <JavaScriptCore/JavaScriptCore.h>
+#endif
 
 #include <core.h>
 
@@ -230,6 +234,9 @@ inline void MCBrowserRunBlockOnMainFiber(void (^p_block)(void))
 
 		if (m_delegate != nil)
 			[m_delegate release];
+		
+		if (m_js_handler_list != nil)
+			[m_js_handler_list release];
 	});
 }
 
@@ -312,23 +319,34 @@ inline void MCBrowserRunBlockOnMainFiber(void (^p_block)(void))
 
 	if (m_js_handlers != nil)
 	{
-		[m_js_handler_list release];
-		m_js_handler_list = nil;
-		
 		MCCStringFree(m_js_handlers);
 		m_js_handlers = nil;
 	}
 
 	m_js_handlers = t_handlers;
 	t_handlers = nil;
 
-	if (m_js_handlers != nil)
-		m_js_handler_list = [[[NSString stringWithCString: m_js_handlers encoding:NSUTF8StringEncoding] componentsSeparatedByString: @"\n"] retain];
-
-	MCBrowserRunBlockOnMainFiber(^{
-		SyncJavaScriptHandlers(m_js_handler_list);
-	});
+/* JSCore not supported on iOS version < 7.0 */
+#ifdef __IPHONE_7_0
+	
+	if (NSClassFromString(@"JSContext"))
+	{
+		if (m_js_handlers != nil)
+		{
+			if (m_js_handler_list != nil)
+				[m_js_handler_list release];
+			m_js_handler_list = nil;
+			
+			m_js_handler_list = [[[NSString stringWithCString: m_js_handlers encoding:NSUTF8StringEncoding] componentsSeparatedByString: @"\n"] retain];
+		}
+		
+		MCBrowserRunBlockOnMainFiber(^{
+			SyncJavaScriptHandlers(m_js_handler_list);
+		});
+	}
 
+#endif
+
 	return true;
 }
 
@@ -337,6 +355,9 @@ inline void MCBrowserRunBlockOnMainFiber(void (^p_block)(void))
 	bool t_success;
 	t_success = true;
 
+/* JSCore not supported on iOS version < 7.0 */
+#ifdef __IPHONE_7_0
+
 	// get js context for browser
 	JSContext *t_context;
 	t_context = nil;
@@ -376,6 +397,8 @@ inline void MCBrowserRunBlockOnMainFiber(void (^p_block)(void))
 		}
 	}
 
+#endif
+	
 	return t_success;
 }