ENGCOM-5354: [Backport] Fixed issue #18337 #23331

Author: sidolov

app/code/Magento/Search/view/frontend/templates/form.mini.phtml

@@ -35,7 +35,8 @@ $helper = $this->helper(\Magento\Search\Helper\Data::class);
                            role="combobox"
                            aria-haspopup="false"
                            aria-autocomplete="both"
-                           autocomplete="off"/>
+                           autocomplete="off"
+                           aria-expanded="false"/>
                     <div id="search_autocomplete" class="search-autocomplete"></div>
                     <?= $block->getChildHtml() ?>
                 </div>

app/code/Magento/Search/view/frontend/web/js/form-mini.js

@@ -71,8 +71,7 @@ define([
                     this.isExpandable = true;
                 }.bind(this),
                 exit: function () {
-                    this.isExpandable = false;
-                    this.element.removeAttr('aria-expanded');
+                    this.isExpandable = true;
                 }.bind(this)
             });