Make .attr(name, null) equivalent to removeAttr(name). (Was roughly this before - but is now consistent across platforms). Fixes #6341.

1 files changed, 8 insertions, 1 deletions

diff --git a/src/attributes.js b/src/attributes.js
index cb9f2cf5e..ec4841bd3 100644
--- a/src/attributes.js
+++ b/src/attributes.js
@@ -295,7 +295,14 @@ jQuery.extend({
 						jQuery.error( "type property can't be changed" );
 					}
 
-					elem[ name ] = value;
+					if ( value === null ) {
+						if ( elem.nodeType === 1 ) {
+							elem.removeAttribute( name );
+						}
+
+					} else {
+						elem[ name ] = value;
+					}
 				}
 
 				// browsers index elements by id/name on forms, give priority to attributes.