From e132b97b0ae4097f6084c58f511b0090abce0dfe Mon Sep 17 00:00:00 2001
From: Fred Sauer <fredsa@google.com>
Date: Wed, 18 Mar 2015 13:57:08 -0700
Subject: [PATCH] Ensure boolean values for aria-* attributes

aria-* (e.g. aria-hidden) values should mirror the truthiness of their ng-*
counterparts (e.g. ng-show, ng-hide) instead of their actual value
---
 src/ngAria/aria.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/ngAria/aria.js b/src/ngAria/aria.js
index ba8fd3530760..b1bcf01dcee9 100644
--- a/src/ngAria/aria.js
+++ b/src/ngAria/aria.js
@@ -115,9 +115,8 @@ function $AriaProvider() {
       var ariaCamelName = attr.$normalize(ariaAttr);
       if (config[ariaCamelName] && !attr[ariaCamelName]) {
         scope.$watch(attr[attrName], function(boolVal) {
-          if (negate) {
-            boolVal = !boolVal;
-          }
+          // ensure boolean value
+          boolVal = negate ? !boolVal : !!boolVal;
           elem.attr(ariaAttr, boolVal);
         });
       }