From b9eb9c355558f52bb19e61ede39d766b412fa9ed Mon Sep 17 00:00:00 2001
From: Jordan Hall <Jordan@libertyware.co.uk>
Date: Thu, 21 Apr 2022 11:27:39 +0100
Subject: [PATCH] ariaActivedescendant = false not valid aria

Fixes #434
---
 src/autocomplete.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/autocomplete.js b/src/autocomplete.js
index 1b55b0d5..27f75cd6 100644
--- a/src/autocomplete.js
+++ b/src/autocomplete.js
@@ -457,6 +457,10 @@ export default class Autocomplete extends Component {
       'aria-describedby': assistiveHintID
     } : null
 
+    const ariaActivedescendantProp = (optionFocused) ? {
+      'aria-activedescendant': `${id}__option--${focused}`
+    } : null
+
     let dropdownArrow
 
     // we only need a dropdown arrow if showAllValues is set to a truthy value
@@ -492,7 +496,7 @@ export default class Autocomplete extends Component {
 
         <input
           aria-expanded={menuOpen ? 'true' : 'false'}
-          aria-activedescendant={optionFocused ? `${id}__option--${focused}` : false}
+          {...ariaActivedescendantProp}
           aria-owns={`${id}__listbox`}
           aria-autocomplete={(this.hasAutoselect()) ? 'both' : 'list'}
           {...ariaDescribedProp}