agent.js in poltergeist-1.8.1

- old
+ new

@@ -184,15 +184,16 @@
 
   Node.prototype.isObsolete = function() {
     var obsolete;
     obsolete = (function(_this) {
       return function(element) {
-        if (element.parentNode != null) {
-          if (element.parentNode === document) {
+        var parent;
+        if ((parent = element.parentNode) != null) {
+          if (parent === document) {
             return false;
           } else {
-            return obsolete(element.parentNode);
+            return obsolete(parent);
           }
         } else {
           return true;
         }
       };
@@ -379,11 +380,13 @@
     return this.element.tagName;
   };
 
   Node.prototype.isVisible = function(element) {
     var style;
-    element || (element = this.element);
+    if (element == null) {
+      element = this.element;
+    }
     while (element) {
       style = window.getComputedStyle(element);
       if (style.display === 'none' || style.visibility === 'hidden' || parseFloat(style.opacity) === 0) {
         return false;
       }
@@ -447,10 +450,10 @@
     return offset;
   };
 
   Node.prototype.position = function() {
     var frameOffset, pos, rect;
-    rect = this.element.getClientRects()[0];
+    rect = this.element.getClientRects()[0] || this.element.getBoundingClientRect();
     if (!rect) {
       throw new PoltergeistAgent.ObsoleteNode;
     }
     frameOffset = this.frameOffset();
     pos = {