diff --git a/core/modules/views/js/ajax_view.js b/core/modules/views/js/ajax_view.js
index 67601a1..3caa1ec 100644
--- a/core/modules/views/js/ajax_view.js
+++ b/core/modules/views/js/ajax_view.js
@@ -51,7 +51,7 @@
 
     this.settings = settings;
 
-    this.$exposed_form = $('form#views-exposed-form-' + settings.view_name.replace(/_/g, '-') + '-' + settings.view_display_id.replace(/_/g, '-'));
+    this.$exposed_form = $('form.views-exposed-form-' + settings.view_name.replace(/_/g, '-') + '-' + settings.view_display_id.replace(/_/g, '-'));
     this.$exposed_form.once('exposed-form').each($.proxy(this.attachExposedFormAjax, this));
 
     this.$view.filter($.proxy(this.filterNestedViews, this)).once('ajax-pager').each($.proxy(this.attachPagerAjax, this));
diff --git a/core/modules/views/src/Form/ViewsExposedForm.php b/core/modules/views/src/Form/ViewsExposedForm.php
index 44e7ec4..b179151 100644
--- a/core/modules/views/src/Form/ViewsExposedForm.php
+++ b/core/modules/views/src/Form/ViewsExposedForm.php
@@ -113,7 +113,10 @@ public function buildForm(array $form, FormStateInterface $form_state) {
 
     $form['#action'] = $view->hasUrl() ? $view->getUrl()->toString() : Url::fromRoute('<current>')->toString();
     $form['#theme'] = $view->buildThemeFunctions('views_exposed_form');
-    $form['#id'] = Html::cleanCssIdentifier('views_exposed_form-' . $view->storage->id() . '-' . $display['id']);
+    $clean_form_id = Html::cleanCssIdentifier('views_exposed_form-' . $view->storage->id() . '-' . $display['id']);
+    $form['#attributes']['class'][] = $clean_form_id;
+    // The form can be possibly rendered twice on a page, make the id unique.
+    $form['#id'] = Html::getUniqueId($clean_form_id);
 
     /** @var \Drupal\views\Plugin\views\exposed_form\ExposedFormPluginInterface $exposed_form_plugin */
     $exposed_form_plugin = $view->display_handler->getPlugin('exposed_form');