From 0db53196c9ecce3a450f838c6767e21b4aac6e31 Mon Sep 17 00:00:00 2001
From: Bruno Bruzzano <brunano21@gmail.com>
Date: Tue, 6 Dec 2016 12:09:53 +0000
Subject: [PATCH] Set and remove aria-expandend attribute when the popup opens
 and closes.

---
 Combobox.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Combobox.js b/Combobox.js
index 1c62ef895d..3242435372 100644
--- a/Combobox.js
+++ b/Combobox.js
@@ -986,6 +986,8 @@ define([
 						}
 						this.dropDown.focus();
 					}
+
+					this.focusNode.setAttribute("aria-expanded", "true");
 				}.bind(this));
 			};
 		}),
@@ -1003,6 +1005,7 @@ define([
 					// Closing the dropdown represents a commit interaction
 					this.handleOnChange(this.value); // emit "change" event
 				}
+				this.focusNode.removeAttribute("aria-expanded");
 				sup.apply(this, arguments);
 			};
 		}),