diff --git a/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php b/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php
index 83612e0..54c476b 100644
--- a/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php
+++ b/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php
@@ -102,7 +102,7 @@ class FacetsSummaryBlock extends BlockBase implements FacetsSummaryBlockInterfac
 
     $build['#attached']['drupalSettings']['facets_views_ajax'] = [
       'facets_summary_ajax' => [
-        'facets_summary_id' => $build['#attributes']['data-drupal-facets-summary-id'],
+        'facets_summary_id' => $facets_summary->id(),
         'view_id' => $view->id(),
         'current_display_id' => $view->current_display,
         'ajax_path' => Url::fromRoute('views.ajax')->toString(),
diff --git a/tests/src/FunctionalJavascript/AjaxBehaviorTest.php b/tests/src/FunctionalJavascript/AjaxBehaviorTest.php
index a4c8d71..1fa81f9 100644
--- a/tests/src/FunctionalJavascript/AjaxBehaviorTest.php
+++ b/tests/src/FunctionalJavascript/AjaxBehaviorTest.php
@@ -2,6 +2,8 @@
 
 namespace Drupal\Tests\facets\FunctionalJavascript;
 
+use Drupal\views\Entity\View;
+
 /**
  * Tests for the JS that powers ajax.
  *
@@ -20,55 +22,52 @@ class AjaxBehaviorTest extends JsBase {
    * Tests ajax links.
    */
   public function testAjaxLinks() {
+    // Create facets.
     $this->createFacet('owl');
     $this->createFacet('duck', 'keywords');
 
+    // Force ajax.
+    $view = View::load('search_api_test_view');
+    /** @var \Drupal\views\Plugin\views\display\DisplayPluginBase $display */
+    $display = $view->getDisplay('page_1');
+    $display->setOption('use_ajax', TRUE);
+    $view->save();
+
     // Go to the views page.
     $this->drupalGet('search-api-test-fulltext');
 
-    // Make sure the block is shown on the page.
+    // Make sure the blocks are shown on the page.
     $page = $this->getSession()->getPage();
     $block_owl = $page->findById('block-owl-block');
     $block_owl->isVisible();
     $block_duck = $page->findById('block-duck-block');
     $block_duck->isVisible();
-  }
 
-  /**
-   * Create a facet.
-   *
-   * @param string $id
-   *   The id of the facet.
-   * @param string $field
-   *   The field name.
-   */
-  protected function createFacet($id, $field = 'type') {
-    $facet_storage = \Drupal::entityTypeManager()->getStorage('facets_facet');
-    // Create and save a facet with a checkbox widget.
-    $facet_storage->create([
-      'id' => $id,
-      'name' => strtoupper($id),
-      'url_alias' => $id,
-      'facet_source_id' => 'search_api:views_page__search_api_test_view__page_1',
-      'field_identifier' => $field,
-      'empty_behavior' => ['behavior' => 'none'],
-      'weight' => 1,
-      'widget' => [
-        'type' => 'links',
-        'config' => [
-          'show_numbers' => TRUE,
-          'soft_limit' => 0,
-        ],
-      ],
-      'processor_configs' => [
-        'url_processor_handler' => [
-          'processor_id' => 'url_processor_handler',
-          'weights' => ['pre_query' => -10, 'build' => -10],
-          'settings' => [],
-        ],
-      ],
-    ])->save();
-    $this->createBlock($id);
+    // Check that the article link exists (and is formatted like a facet) link.
+    $links = $this->xpath('//a//span[normalize-space(text())=:label]', [':label' => 'article']);
+    $this->assertEmpty($links);
+
+    // Click the item facet.
+    $this->clickLink('item');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // Check that the article facet is now gone.
+    $links = $this->xpath('//a//span[normalize-space(text())=:label]', [':label' => 'article']);
+    $this->assertEmpty($links);
+
+    // Click the item facet again, and check that the article facet is back.
+    $this->clickLink('item');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $links = $this->xpath('//a//span[normalize-space(text())=:label]', [':label' => 'article']);
+    $this->assertNotEmpty($links);
+
+    // Check that the strawberry link disappears when filtering on items.
+    $links = $this->xpath('//a//span[normalize-space(text())=:label]', [':label' => 'strawberry']);
+    $this->assertNotEmpty($links);
+    $this->clickLink('item');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $links = $this->xpath('//a//span[normalize-space(text())=:label]', [':label' => 'strawberry']);
+    $this->assertEmpty($links);
   }
 
 }
diff --git a/tests/src/FunctionalJavascript/JsBase.php b/tests/src/FunctionalJavascript/JsBase.php
index 28b9448..8a6f5b8 100644
--- a/tests/src/FunctionalJavascript/JsBase.php
+++ b/tests/src/FunctionalJavascript/JsBase.php
@@ -127,4 +127,41 @@ abstract class JsBase extends JavascriptTestBase {
     $block->save();
   }
 
+  /**
+   * Create a facet.
+   *
+   * @param string $id
+   *   The id of the facet.
+   * @param string $field
+   *   The field name.
+   */
+  protected function createFacet($id, $field = 'type') {
+    $facet_storage = \Drupal::entityTypeManager()->getStorage('facets_facet');
+    // Create and save a facet with a checkbox widget.
+    $facet_storage->create([
+      'id' => $id,
+      'name' => strtoupper($id),
+      'url_alias' => $id,
+      'facet_source_id' => 'search_api:views_page__search_api_test_view__page_1',
+      'field_identifier' => $field,
+      'empty_behavior' => ['behavior' => 'none'],
+      'weight' => 1,
+      'widget' => [
+        'type' => 'links',
+        'config' => [
+          'show_numbers' => TRUE,
+          'soft_limit' => 0,
+        ],
+      ],
+      'processor_configs' => [
+        'url_processor_handler' => [
+          'processor_id' => 'url_processor_handler',
+          'weights' => ['pre_query' => -10, 'build' => -10],
+          'settings' => [],
+        ],
+      ],
+    ])->save();
+    $this->createBlock($id);
+  }
+
 }