fix(jqLite): make jqLite('<iframe src="someurl">').contents() return iframe document, as in jQuery

This is a very tiny change to make behaviour consistent with jQuery.

Closes #6320
Closes #6323

1 files changed, 1 insertions, 1 deletions

diff --git a/src/jqLite.js b/src/jqLite.js
index 664ba7b7..b820f5e7 100644
--- a/src/jqLite.js
+++ b/src/jqLite.js
@@ -793,7 +793,7 @@ forEach({
   },
 
   contents: function(element) {
-    return element.childNodes || [];
+    return element.contentDocument || element.childNodes || [];
   },
 
   append: function(element, node) {