agent.js in poltergeist-1.12.0

- old
+ new

@@ -1,20 +1,15 @@
 var PoltergeistAgent;
 
 PoltergeistAgent = (function() {
-  PoltergeistAgent.JSON || (PoltergeistAgent.JSON = {
-    parse: JSON.parse,
-    stringify: JSON.stringify
-  });
-
   function PoltergeistAgent() {
     this.elements = [];
     this.nodes = {};
   }
 
   PoltergeistAgent.prototype.externalCall = function(name, args) {
-    var error, error1;
+    var error;
     try {
       return {
         value: this[name].apply(this, args)
       };
     } catch (error1) {
@@ -26,36 +21,16 @@
         }
       };
     }
   };
 
-  PoltergeistAgent.stringify = function(object) {
-    var error, error1;
-    try {
-      return PoltergeistAgent.JSON.stringify(object, function(key, value) {
-        if (Array.isArray(this[key])) {
-          return this[key];
-        } else {
-          return value;
-        }
-      });
-    } catch (error1) {
-      error = error1;
-      if (error instanceof TypeError) {
-        return '"(cyclic structure)"';
-      } else {
-        throw error;
-      }
-    }
-  };
-
   PoltergeistAgent.prototype.currentUrl = function() {
     return window.location.href.replace(/\ /g, '%20');
   };
 
   PoltergeistAgent.prototype.find = function(method, selector, within) {
-    var el, error, error1, i, j, len, results, results1, xpath;
+    var el, error, i, j, len, results, results1, xpath;
     if (within == null) {
       within = document;
     }
     try {
       if (method === "xpath") {
@@ -294,13 +269,14 @@
     }
     return attrs;
   };
 
   Node.prototype.getAttribute = function(name) {
+    var ref;
     if (name === 'checked' || name === 'selected') {
       return this.element[name];
     } else {
-      return this.element.getAttribute(name);
+      return (ref = this.element.getAttribute(name)) != null ? ref : void 0;
     }
   };
 
   Node.prototype.scrollIntoView = function() {
     this.element.scrollIntoViewIfNeeded();