From 1aa0ecfb83cb97ee5c1efbfa28b2948aa3801069 Mon Sep 17 00:00:00 2001
From: Nolan Waite <nolan@nolanw.ca>
Date: Wed, 16 Apr 2014 03:16:13 -0300
Subject: [PATCH] Escape U+2028 and U+2029 when writing JSON as a JavaScript
 string literal.

U+2028 LINE SEPARATOR and U+2029 PARAGRAPH SEPARATOR are also not allowed in a JavaScript string literal. Trying to send a message with either would cause an "unexpected EOF" exception on the JavaScript side.
---
 WebViewJavascriptBridge/WebViewJavascriptBridge.m | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/WebViewJavascriptBridge/WebViewJavascriptBridge.m b/WebViewJavascriptBridge/WebViewJavascriptBridge.m
index 2473c01e..0f1e314a 100644
--- a/WebViewJavascriptBridge/WebViewJavascriptBridge.m
+++ b/WebViewJavascriptBridge/WebViewJavascriptBridge.m
@@ -135,6 +135,8 @@ - (void)_dispatchMessage:(WVJBMessage*)message {
     messageJSON = [messageJSON stringByReplacingOccurrencesOfString:@"\n" withString:@"\\n"];
     messageJSON = [messageJSON stringByReplacingOccurrencesOfString:@"\r" withString:@"\\r"];
     messageJSON = [messageJSON stringByReplacingOccurrencesOfString:@"\f" withString:@"\\f"];
+    messageJSON = [messageJSON stringByReplacingOccurrencesOfString:@"\u2028" withString:@"\\u2028"];
+    messageJSON = [messageJSON stringByReplacingOccurrencesOfString:@"\u2029" withString:@"\\u2029"];
 
     NSString* javascriptCommand = [NSString stringWithFormat:@"WebViewJavascriptBridge._handleMessageFromObjC('%@');", messageJSON];
     if ([[NSThread currentThread] isMainThread]) {