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-rw-r--r--src/attributes.js3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/attributes.js b/src/attributes.js
index aca9e055d..1278ff84b 100644
--- a/src/attributes.js
+++ b/src/attributes.js
@@ -278,7 +278,8 @@ jQuery.extend({
}
// If applicable, access the attribute via the DOM 0 way
- if ( name in elem && notxml && !special ) {
+ // 'in' checks fail in Blackberry 4.7 #6931
+ if ( (name in elem || elem[ name ] !== undefined) && notxml && !special ) {
if ( set ) {
// We can't allow the type property to be changed (since it causes problems in IE)
if ( name === "type" && rtype.test( elem.nodeName ) && elem.parentNode ) {