anchor.diff:    f.apply(null);
   }
   
  -onBeforeRequestHandler(Map data) {
  +onBeforeRequestHandler(JsObject data) {
     if (data["method"] == "GET") {
       processSamlRedirectBindingMessage(data);
     }
  
positive.code:   window.localStorage["messages"] = JSON.encode(storedMessages);
  }
  
  void processSamlPostBindingMessage(Map data) {
    Map body = data["requestBody"];
    if (body != null) {
      Map formData = body["formData"];
  
negative.code:   return messageList != null && messageList.length > 0;
  }
  
  void processSamlRedirectBindingMessage(JsObject data) {
    var url = data["url"];
    Uri uri = Uri.parse(url);
  
  