convert special unicode

Author: Lision

WKWebViewJavascriptBridge/WKWebViewJavascriptBridgeBase.swift

@@ -109,9 +109,9 @@ public class WKWebViewJavascriptBridgeBase: NSObject {
         messageJSON = messageJSON.replacingOccurrences(of: "\'", with: "\\\'")
         messageJSON = messageJSON.replacingOccurrences(of: "\n", with: "\\n")
         messageJSON = messageJSON.replacingOccurrences(of: "\r", with: "\\r")
-//        messageJSON = messageJSON.replacingOccurrences(of: "\f", with: "\\f")
-//        messageJSON = messageJSON.replacingOccurrences(of: "\u2028", with: "\\u2028")
-//        messageJSON = messageJSON.replacingOccurrences(of: "\u2029", with: "\\u2029")
+        messageJSON = messageJSON.replacingOccurrences(of: "\u{000C}", with: "\\f")
+        messageJSON = messageJSON.replacingOccurrences(of: "\u{2028}", with: "\\u2028")
+        messageJSON = messageJSON.replacingOccurrences(of: "\u{2029}", with: "\\u2029")
 
         let javascriptCommand = "WKWebViewJavascriptBridge._handleMessageFromiOS('\(messageJSON)');"
         if Thread.current.isMainThread {