Revert "Issue #3101543 by lauriii, bnjmnm, ravi.shankar: Update core...

Revert "Issue #3101543 by lauriii, bnjmnm, ravi.shankar: Update core JavaScript dependencies listed in package.json"

This reverts commit 2dadb738.

core/.eslintrc.json

@@ -21,11 +21,6 @@
     "Sortable": true,
     "CKEDITOR": true
   },
-  "settings": {
-    "react": {
-      "version": "latest"
-    }
-  },
   "rules": {
     "prettier/prettier": "error",
     "consistent-return": ["off"],

core/misc/active-link.js

@@ -10,25 +10,26 @@
     attach: function attach(context) {
       var path = drupalSettings.path;
       var queryString = JSON.stringify(path.currentQuery);
-      var querySelector = path.currentQuery ? "[data-drupal-link-query='".concat(queryString, "']") : ':not([data-drupal-link-query])';
-      var originalSelectors = ["[data-drupal-link-system-path=\"".concat(path.currentPath, "\"]")];
-      var selectors;
+      var querySelector = path.currentQuery ? '[data-drupal-link-query=\'' + queryString + '\']' : ':not([data-drupal-link-query])';
+      var originalSelectors = ['[data-drupal-link-system-path="' + path.currentPath + '"]'];
+      var selectors = void 0;
 
       if (path.isFront) {
         originalSelectors.push('[data-drupal-link-system-path="<front>"]');
       }
 
       selectors = [].concat(originalSelectors.map(function (selector) {
-        return "".concat(selector, ":not([hreflang])");
+        return selector + ':not([hreflang])';
       }), originalSelectors.map(function (selector) {
-        return "".concat(selector, "[hreflang=\"").concat(path.currentLanguage, "\"]");
+        return selector + '[hreflang="' + path.currentLanguage + '"]';
       }));
+
       selectors = selectors.map(function (current) {
         return current + querySelector;
       });
+
       var activeLinks = context.querySelectorAll(selectors.join(','));
       var il = activeLinks.length;
-
       for (var i = 0; i < il; i++) {
         activeLinks[i].classList.add('is-active');
       }
@@ -37,7 +38,6 @@
       if (trigger === 'unload') {
         var activeLinks = context.querySelectorAll('[data-drupal-link-system-path].is-active');
         var il = activeLinks.length;
-
         for (var i = 0; i < il; i++) {
           activeLinks[i].classList.remove('is-active');
         }

core/misc/ajax.es6.js

@@ -102,9 +102,7 @@
     if (xmlhttp.status) {
       statusCode = `\n${Drupal.t('An AJAX HTTP error occurred.')}\n${Drupal.t(
         'HTTP Result Code: !status',
-        {
-          '!status': xmlhttp.status,
-        },
+        { '!status': xmlhttp.status },
       )}`;
     } else {
       statusCode = `\n${Drupal.t(
@@ -1131,14 +1129,12 @@
     (response.effect || ajax.effect) !== 'none' &&
     $newContent.filter(
       i =>
-        !(
-          // We can not consider HTML comments or whitespace text as separate
-          // roots, since they do not cause visual regression with effect.
-          (
-            $newContent[i].nodeName === '#comment' ||
-            ($newContent[i].nodeName === '#text' &&
-              /^(\s|\n|\r)*$/.test($newContent[i].textContent))
-          )
+        !// We can not consider HTML comments or whitespace text as separate
+        // roots, since they do not cause visual regression with effect.
+        (
+          $newContent[i].nodeName === '#comment' ||
+          ($newContent[i].nodeName === '#text' &&
+            /^(\s|\n|\r)*$/.test($newContent[i].textContent))
         ),
     ).length > 1
       ? Drupal.theme('ajaxWrapperMultipleRootElements', $newContent)

core/misc/ajax.js

@@ -4,25 +4,16 @@
 * https://www.drupal.org/node/2815083
 * @preserve
 **/
-
-function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
-
-function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
-
-function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
-
-function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
 
 (function ($, window, Drupal, drupalSettings) {
   Drupal.behaviors.AJAX = {
     attach: function attach(context, settings) {
       function loadAjaxBehavior(base) {
         var elementSettings = settings.ajax[base];
-
         if (typeof elementSettings.selector === 'undefined') {
-          elementSettings.selector = "#".concat(base);
+          elementSettings.selector = '#' + base;
         }
-
         $(elementSettings.selector).once('drupal-ajax').each(function () {
           elementSettings.element = this;
           elementSettings.base = base;
@@ -33,17 +24,22 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       Object.keys(settings.ajax || {}).forEach(function (base) {
         return loadAjaxBehavior(base);
       });
+
       Drupal.ajax.bindAjaxLinks(document.body);
+
       $('.use-ajax-submit').once('ajax').each(function () {
         var elementSettings = {};
+
         elementSettings.url = $(this.form).attr('action');
+
         elementSettings.setClick = true;
+
         elementSettings.event = 'click';
-        elementSettings.progress = {
-          type: 'throbber'
-        };
+
+        elementSettings.progress = { type: 'throbber' };
         elementSettings.base = $(this).attr('id');
         elementSettings.element = this;
+
         Drupal.ajax(elementSettings);
       });
     },
@@ -57,47 +53,45 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   };
 
   Drupal.AjaxError = function (xmlhttp, uri, customMessage) {
-    var statusCode;
-    var statusText;
-    var responseText;
-
+    var statusCode = void 0;
+    var statusText = void 0;
+    var responseText = void 0;
     if (xmlhttp.status) {
-      statusCode = "\n".concat(Drupal.t('An AJAX HTTP error occurred.'), "\n").concat(Drupal.t('HTTP Result Code: !status', {
-        '!status': xmlhttp.status
-      }));
+      statusCode = '\n' + Drupal.t('An AJAX HTTP error occurred.') + '\n' + Drupal.t('HTTP Result Code: !status', { '!status': xmlhttp.status });
     } else {
-      statusCode = "\n".concat(Drupal.t('An AJAX HTTP request terminated abnormally.'));
+      statusCode = '\n' + Drupal.t('An AJAX HTTP request terminated abnormally.');
     }
-
-    statusCode += "\n".concat(Drupal.t('Debugging information follows.'));
-    var pathText = "\n".concat(Drupal.t('Path: !uri', {
-      '!uri': uri
-    }));
+    statusCode += '\n' + Drupal.t('Debugging information follows.');
+    var pathText = '\n' + Drupal.t('Path: !uri', { '!uri': uri });
     statusText = '';
 
     try {
-      statusText = "\n".concat(Drupal.t('StatusText: !statusText', {
+      statusText = '\n' + Drupal.t('StatusText: !statusText', {
         '!statusText': $.trim(xmlhttp.statusText)
-      }));
+      });
     } catch (e) {}
 
     responseText = '';
 
     try {
-      responseText = "\n".concat(Drupal.t('ResponseText: !responseText', {
+      responseText = '\n' + Drupal.t('ResponseText: !responseText', {
         '!responseText': $.trim(xmlhttp.responseText)
-      }));
+      });
     } catch (e) {}
 
     responseText = responseText.replace(/<("[^"]*"|'[^']*'|[^'">])*>/gi, '');
     responseText = responseText.replace(/[\n]+\s+/g, '\n');
-    var readyStateText = xmlhttp.status === 0 ? "\n".concat(Drupal.t('ReadyState: !readyState', {
+
+    var readyStateText = xmlhttp.status === 0 ? '\n' + Drupal.t('ReadyState: !readyState', {
       '!readyState': xmlhttp.readyState
-    })) : '';
-    customMessage = customMessage ? "\n".concat(Drupal.t('CustomMessage: !customMessage', {
+    }) : '';
+
+    customMessage = customMessage ? '\n' + Drupal.t('CustomMessage: !customMessage', {
       '!customMessage': customMessage
-    })) : '';
+    }) : '';
+
     this.message = statusCode + pathText + statusText + customMessage + responseText + readyStateText;
+
     this.name = 'AjaxError';
   };
 
@@ -121,6 +115,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     var ajax = new Drupal.Ajax(base, element, settings);
     ajax.instanceIndex = Drupal.ajax.instances.length;
     Drupal.ajax.instances.push(ajax);
+
     return ajax;
   };
 
@@ -135,10 +130,9 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   Drupal.ajax.bindAjaxLinks = function (element) {
     $(element).find('.use-ajax').once('ajax').each(function (i, ajaxLink) {
       var $linkElement = $(ajaxLink);
+
       var elementSettings = {
-        progress: {
-          type: 'throbber'
-        },
+        progress: { type: 'throbber' },
         dialogType: $linkElement.data('dialog-type'),
         dialog: $linkElement.data('dialog-options'),
         dialogRenderer: $linkElement.data('dialog-renderer'),
@@ -151,7 +145,6 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
         elementSettings.url = href;
         elementSettings.event = 'click';
       }
-
       Drupal.ajax(elementSettings);
     });
   };
@@ -160,7 +153,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     var defaults = {
       event: element ? 'mousedown' : null,
       keypress: true,
-      selector: base ? "#".concat(base) : null,
+      selector: base ? '#' + base : null,
       effect: 'none',
       speed: 'none',
       method: 'replaceWith',
@@ -172,16 +165,21 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
         js: true
       }
     };
+
     $.extend(this, defaults, elementSettings);
+
     this.commands = new Drupal.AjaxCommands();
+
     this.instanceIndex = false;
 
     if (this.wrapper) {
-      this.wrapper = "#".concat(this.wrapper);
+      this.wrapper = '#' + this.wrapper;
     }
 
     this.element = element;
+
     this.element_settings = elementSettings;
+
     this.elementSettings = elementSettings;
 
     if (this.element && this.element.form) {
@@ -190,7 +188,6 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
 
     if (!this.url) {
       var $element = $(this.element);
-
       if ($element.is('a')) {
         this.url = $element.attr('href');
       } else if (this.element && element.form) {
@@ -199,6 +196,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     }
 
     var originalUrl = this.url;
+
     this.url = this.url.replace(/\/nojs(\/|$|\?|#)/, '/ajax$1');
 
     if (drupalSettings.ajaxTrustedUrl[originalUrl]) {
@@ -206,6 +204,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     }
 
     var ajax = this;
+
     ajax.options = {
       url: ajax.url,
       data: ajax.submit,
@@ -236,11 +235,11 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       },
       complete: function complete(xmlhttprequest, status) {
         ajax.ajaxing = false;
-
         if (status === 'error' || status === 'parsererror') {
           return ajax.error(xmlhttprequest, ajax.url);
         }
       },
+
       dataType: 'json',
       type: 'POST'
     };
@@ -255,20 +254,18 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       ajax.options.url += '&';
     }
 
-    var wrapper = "drupal_".concat(elementSettings.dialogType || 'ajax');
-
+    var wrapper = 'drupal_' + (elementSettings.dialogType || 'ajax');
     if (elementSettings.dialogRenderer) {
-      wrapper += ".".concat(elementSettings.dialogRenderer);
+      wrapper += '.' + elementSettings.dialogRenderer;
     }
+    ajax.options.url += Drupal.ajax.WRAPPER_FORMAT + '=' + wrapper;
 
-    ajax.options.url += "".concat(Drupal.ajax.WRAPPER_FORMAT, "=").concat(wrapper);
     $(ajax.element).on(elementSettings.event, function (event) {
       if (!drupalSettings.ajaxTrustedUrl[ajax.url] && !Drupal.url.isLocal(ajax.url)) {
         throw new Error(Drupal.t('The callback URL is not local and not trusted: !url', {
           '!url': ajax.url
         }));
       }
-
       return ajax.eventResponse(this, event);
     });
 
@@ -284,6 +281,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   };
 
   Drupal.ajax.WRAPPER_FORMAT = '_wrapper_format';
+
   Drupal.Ajax.AJAX_REQUEST_PARAMETER = '_drupal_ajax';
 
   Drupal.Ajax.prototype.execute = function () {
@@ -293,10 +291,12 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
 
     try {
       this.beforeSerialize(this.element, this.options);
+
       return $.ajax(this.options);
     } catch (e) {
       this.ajaxing = false;
-      window.alert("An error occurred while attempting to process ".concat(this.options.url, ": ").concat(e.message));
+      window.alert('An error occurred while attempting to process ' + this.options.url + ': ' + e.message);
+
       return $.Deferred().reject();
     }
   };
@@ -314,6 +314,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   Drupal.Ajax.prototype.eventResponse = function (element, event) {
     event.preventDefault();
     event.stopPropagation();
+
     var ajax = this;
 
     if (ajax.ajaxing) {
@@ -333,7 +334,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       }
     } catch (e) {
       ajax.ajaxing = false;
-      window.alert("An error occurred while attempting to process ".concat(ajax.options.url, ": ").concat(e.message));
+      window.alert('An error occurred while attempting to process ' + ajax.options.url + ': ' + e.message);
     }
   };
 
@@ -344,6 +345,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     }
 
     options.data[Drupal.Ajax.AJAX_REQUEST_PARAMETER] = 1;
+
     var pageState = drupalSettings.ajaxPageState;
     options.data['ajax_page_state[theme]'] = pageState.theme;
     options.data['ajax_page_state[theme_token]'] = pageState.theme_token;
@@ -355,9 +357,10 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   Drupal.Ajax.prototype.beforeSend = function (xmlhttprequest, options) {
     if (this.$form) {
       options.extraData = options.extraData || {};
+
       options.extraData.ajax_iframe_upload = '1';
-      var v = $.fieldValue(this.element);
 
+      var v = $.fieldValue(this.element);
       if (v !== null) {
         options.extraData[this.element.name] = v;
       }
@@ -369,8 +372,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       return;
     }
 
-    var progressIndicatorMethod = "setProgressIndicator".concat(this.progress.type.slice(0, 1).toUpperCase()).concat(this.progress.type.slice(1).toLowerCase());
-
+    var progressIndicatorMethod = 'setProgressIndicator' + this.progress.type.slice(0, 1).toUpperCase() + this.progress.type.slice(1).toLowerCase();
     if (progressIndicatorMethod in this && typeof this[progressIndicatorMethod] === 'function') {
       this[progressIndicatorMethod].call(this);
     }
@@ -379,7 +381,8 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   Drupal.theme.ajaxProgressThrobber = function (message) {
     var messageMarkup = typeof message === 'string' ? Drupal.theme('ajaxProgressMessage', message) : '';
     var throbber = '<div class="throbber">&nbsp;</div>';
-    return "<div class=\"ajax-progress ajax-progress-throbber\">".concat(throbber).concat(messageMarkup, "</div>");
+
+    return '<div class="ajax-progress ajax-progress-throbber">' + throbber + messageMarkup + '</div>';
   };
 
   Drupal.theme.ajaxProgressIndicatorFullscreen = function () {
@@ -387,7 +390,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   };
 
   Drupal.theme.ajaxProgressMessage = function (message) {
-    return "<div class=\"message\">".concat(message, "</div>");
+    return '<div class="message">' + message + '</div>';
   };
 
   Drupal.theme.ajaxProgressBar = function ($element) {
@@ -395,16 +398,13 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   };
 
   Drupal.Ajax.prototype.setProgressIndicatorBar = function () {
-    var progressBar = new Drupal.ProgressBar("ajax-progress-".concat(this.element.id), $.noop, this.progress.method, $.noop);
-
+    var progressBar = new Drupal.ProgressBar('ajax-progress-' + this.element.id, $.noop, this.progress.method, $.noop);
     if (this.progress.message) {
       progressBar.setProgress(-1, this.progress.message);
     }
-
     if (this.progress.url) {
       progressBar.startMonitoring(this.progress.url, this.progress.interval || 1500);
     }
-
     this.progress.element = $(Drupal.theme('ajaxProgressBar', progressBar.element));
     this.progress.object = progressBar;
     $(this.element).after(this.progress.element);
@@ -426,18 +426,17 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     if (this.progress.element) {
       $(this.progress.element).remove();
     }
-
     if (this.progress.object) {
       this.progress.object.stopMonitoring();
     }
-
     $(this.element).prop('disabled', false);
+
     var elementParents = $(this.element).parents('[data-drupal-selector]').addBack().toArray();
+
     var focusChanged = false;
     Object.keys(response || {}).forEach(function (i) {
       if (response[i].command && _this.commands[response[i].command]) {
         _this.commands[response[i].command](_this, response[i], status);
-
         if (response[i].command === 'invoke' && response[i].method === 'focus') {
           focusChanged = true;
         }
@@ -448,7 +447,7 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       var target = false;
 
       for (var n = elementParents.length - 1; !target && n >= 0; n--) {
-        target = document.querySelector("[data-drupal-selector=\"".concat(elementParents[n].getAttribute('data-drupal-selector'), "\"]"));
+        target = document.querySelector('[data-drupal-selector="' + elementParents[n].getAttribute('data-drupal-selector') + '"]');
       }
 
       if (target) {
@@ -467,8 +466,8 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   Drupal.Ajax.prototype.getEffect = function (response) {
     var type = response.effect || this.effect;
     var speed = response.speed || this.speed;
-    var effect = {};
 
+    var effect = {};
     if (type === 'none') {
       effect.showEffect = 'show';
       effect.hideEffect = 'hide';
@@ -478,8 +477,8 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       effect.hideEffect = 'fadeOut';
       effect.showSpeed = speed;
     } else {
-      effect.showEffect = "".concat(type, "Toggle");
-      effect.hideEffect = "".concat(type, "Toggle");
+      effect.showEffect = type + 'Toggle';
+      effect.hideEffect = type + 'Toggle';
       effect.showSpeed = speed;
     }
 
@@ -490,19 +489,18 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     if (this.progress.element) {
       $(this.progress.element).remove();
     }
-
     if (this.progress.object) {
       this.progress.object.stopMonitoring();
     }
 
     $(this.wrapper).show();
+
     $(this.element).prop('disabled', false);
 
     if (this.$form && document.body.contains(this.$form.get(0))) {
       var settings = this.settings || drupalSettings;
       Drupal.attachBehaviors(this.$form.get(0), settings);
     }
-
     throw new Drupal.AjaxError(xmlhttprequest, uri, customMessage);
   };
 
@@ -517,14 +515,16 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
   };
 
   Drupal.AjaxCommands = function () {};
-
   Drupal.AjaxCommands.prototype = {
     insert: function insert(ajax, response) {
       var $wrapper = response.selector ? $(response.selector) : $(ajax.wrapper);
       var method = response.method || ajax.method;
       var effect = ajax.getEffect(response);
+
       var settings = response.settings || ajax.settings || drupalSettings;
+
       var $newContent = $($.parseHTML(response.data, document, true));
+
       $newContent = Drupal.theme('ajaxWrapperNewContent', $newContent, ajax, response);
 
       switch (method) {
@@ -535,7 +535,6 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
         case 'remove':
           Drupal.detachBehaviors($wrapper.get(0), settings);
           break;
-
         default:
           break;
       }
@@ -547,7 +546,6 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       }
 
       var $ajaxNewContent = $newContent.find('.ajax-new-content');
-
       if ($ajaxNewContent.length) {
         $ajaxNewContent.hide();
         $newContent.show();
@@ -572,12 +570,10 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
     },
     changed: function changed(ajax, response, status) {
       var $element = $(response.selector);
-
       if (!$element.hasClass('ajax-changed')) {
         $element.addClass('ajax-changed');
-
         if (response.asterisk) {
-          $element.find(response.asterisk).append(" <abbr class=\"ajax-changed\" title=\"".concat(Drupal.t('Changed'), "\">*</abbr> "));
+          $element.find(response.asterisk).append(' <abbr class="ajax-changed" title="' + Drupal.t('Changed') + '">*</abbr> ');
         }
       }
     },
@@ -602,9 +598,9 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
 
       if (ajaxSettings) {
         Drupal.ajax.expired().forEach(function (instance) {
+
           if (instance.selector) {
             var selector = instance.selector.replace('#', '');
-
             if (selector in ajaxSettings) {
               delete ajaxSettings[selector];
             }
@@ -629,18 +625,16 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr
       $(response.selector).find('> tbody > tr:visible, > tr:visible').removeClass('odd even').filter(':even').addClass('odd').end().filter(':odd').addClass('even');
     },
     update_build_id: function update_build_id(ajax, response, status) {
-      $("input[name=\"form_build_id\"][value=\"".concat(response.old, "\"]")).val(response["new"]);
+      $('input[name="form_build_id"][value="' + response.old + '"]').val(response.new);
     },
     add_css: function add_css(ajax, response, status) {
       $('head').prepend(response.data);
     },
     message: function message(ajax, response) {
       var messages = new Drupal.Message(document.querySelector(response.messageWrapperQuerySelector));
-
       if (response.clearPrevious) {
         messages.clear();
       }
-
       messages.add(response.message, response.messageOptions);
     }
   };

core/misc/announce.js

@@ -6,8 +6,9 @@
 **/
 
 (function (Drupal, debounce) {
-  var liveElement;
+  var liveElement = void 0;
   var announcements = [];
+
   Drupal.behaviors.drupalAnnounce = {
     attach: function attach(context) {
       if (!liveElement) {
@@ -24,9 +25,9 @@
   function announce() {
     var text = [];
     var priority = 'polite';
-    var announcement;
-    var il = announcements.length;
+    var announcement = void 0;
 
+    var il = announcements.length;
     for (var i = 0; i < il; i++) {
       announcement = announcements.pop();
       text.unshift(announcement.text);
@@ -38,9 +39,13 @@
 
     if (text.length) {
       liveElement.innerHTML = '';
+
       liveElement.setAttribute('aria-busy', 'true');