From a9e9ea454fbfe1ddf56bc03c6552047382ec1da9 Mon Sep 17 00:00:00 2001
From: gorhill <rhill@raymondhill.net>
Date: Tue, 3 Feb 2015 18:43:51 -0500
Subject: [PATCH] this fixes part of #671

---
 src/js/element-picker.js | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/js/element-picker.js b/src/js/element-picker.js
index db79f6173..7915aea4f 100644
--- a/src/js/element-picker.js
+++ b/src/js/element-picker.js
@@ -114,9 +114,6 @@
 /******************************************************************************/
 /******************************************************************************/
 
-/******************************************************************************/
-/******************************************************************************/
-
 (function() {
 
 'use strict';
@@ -270,10 +267,10 @@ var netFilterFromElement = function(elem, out) {
         return;
     }
     var tagName = elem.tagName.toLowerCase();
-    if ( tagName !== 'img' && tagName !== 'iframe' ) {
+    if ( netFilterSources.hasOwnProperty(tagName) === false ) {
         return;
     }
-    var src = elem.getAttribute('src');
+    var src = elem.getAttribute(netFilterSources[tagName]);
     if ( typeof src !== 'string' || src.length === 0 ) {
         return;
     }
@@ -297,6 +294,12 @@ var netFilterFromElement = function(elem, out) {
     }
 };
 
+var netFilterSources = {
+    'iframe': 'src',
+       'img': 'src',
+    'object': 'data'
+};
+
 /******************************************************************************/
 
 // Extract the best possible cosmetic filter, i.e. as specific as possible.
@@ -431,15 +434,16 @@ var elementsFromFilter = function(filter) {
     if ( filter.slice(0, 2) === '||' ) {
         filter = filter.replace('||', '');
     }
-    var elems = document.querySelectorAll('[src]');
+    var elems = document.querySelectorAll('iframe,img,object');
     var i = elems.length;
-    var elem;
+    var elem, src;
     while ( i-- ) {
         elem = elems[i];
-        if ( typeof elem.src !== 'string' ) {
+        src = elem.getAttribute(netFilterSources[elem.tagName.toLowerCase()]);
+        if ( typeof src !== 'string' ) {
             continue;
         }
-        if ( elem.src.indexOf(filter) !== -1 ) {
+        if ( src.indexOf(filter) !== -1 ) {
             out.push(elem);
         }
     }