diff --git a/modules/dkan_js_frontend/dkan_js_frontend.module b/modules/dkan_js_frontend/dkan_js_frontend.module
index 752a4755ae..a3821e7106 100644
--- a/modules/dkan_js_frontend/dkan_js_frontend.module
+++ b/modules/dkan_js_frontend/dkan_js_frontend.module
@@ -114,12 +114,17 @@ function dkan_js_frontend_simple_sitemap_arbitrary_links_alter(array &$arbitrary
  *   Collection of DKAN routes.
  */
 function _dkan_js_frontend_add_static_links(array &$arbitrary_links, RouteCollection $routes): void {
+  // Build request context from request.
+  $request = \Drupal::request();
+  $request_context = (new RequestContext())->fromRequest($request);
+  // Build route URL generator.
+  $url_generator = new UrlGenerator($routes, $request_context);
   // Loop through routes and add to sitemap.
-  foreach ($routes as $route) {
+  foreach ($routes as $route_name => $route) {
     // Add this link to the sitemap if it's not a dynamic route.
     if (empty($route->compile()->getPathVariables())) {
       $arbitrary_links[] = DKAN_JS_FRONTEND_DEFAULT_STATIC_LINK + [
-        'url' => $route->getPath(),
+        'url' => $url_generator->generate($route_name, [], UrlGeneratorInterface::ABSOLUTE_URL),
       ];
     }
   }
@@ -134,17 +139,21 @@ function _dkan_js_frontend_add_static_links(array &$arbitrary_links, RouteCollec
  *   Collection of DKAN routes.
  */
 function _dkan_js_frontend_add_dataset_links(array &$arbitrary_links, Route $dataset_route): void {
+  // Build route collection.
+  $routes = new RouteCollection();
+  $routes->add('dataset', $dataset_route);
+  // Build request context from request.
+  $request = \Drupal::request();
+  $request_context = (new RequestContext())->fromRequest($request);
   // Build route URL generator.
-  $route_collection = new RouteCollection();
-  $route_collection->add('dataset', $dataset_route);
-  $url_generator = new UrlGenerator($route_collection, new RequestContext());
+  $url_generator = new UrlGenerator($routes, $request_context);
 
   // Fetch dataset UUIDs.
   $dataset_uuids = \Drupal::service('dkan.metastore.service')->getRangeUuids('dataset');
   // Add dataset routes using the fetched UUIDs.
   foreach ($dataset_uuids as $uuid) {
     $arbitrary_links[] = DKAN_JS_FRONTEND_DEFAULT_DATASET_LINK + [
-      'url' => $url_generator->generate('dataset', ['id' => $uuid], UrlGeneratorInterface::ABSOLUTE_PATH),
+      'url' => $url_generator->generate('dataset', ['id' => $uuid], UrlGeneratorInterface::ABSOLUTE_URL),
     ];
   }
 }
diff --git a/modules/dkan_js_frontend/tests/src/Unit/SimpleSitemapArbitraryLinksAlterTest.php b/modules/dkan_js_frontend/tests/src/Unit/SimpleSitemapArbitraryLinksAlterTest.php
index 2ada71073f..cc93ec2dab 100644
--- a/modules/dkan_js_frontend/tests/src/Unit/SimpleSitemapArbitraryLinksAlterTest.php
+++ b/modules/dkan_js_frontend/tests/src/Unit/SimpleSitemapArbitraryLinksAlterTest.php
@@ -17,6 +17,8 @@
 use MockChain\Chain;
 use MockChain\Options;
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
 
 $module_path = substr(__DIR__, 0, strpos(__DIR__, '/dkan_js_frontend/')) . '/dkan_js_frontend';
 require_once($module_path . '/dkan_js_frontend.module');
@@ -26,6 +28,13 @@
  */
 class SimpleSitemapArbitraryLinksAlterTest extends TestCase {
 
+  /**
+   * Base URL to use for testing sitemap URL generation.
+   *
+   * @var string
+   */
+  protected const BASE_URL = 'https://example.com';
+
   /**
    * Test sitemap generation of static links.
    */
@@ -40,9 +49,11 @@ public function testSitemapStaticLinks(): void {
       ->add('entity_type.repository', EntityTypeRepository::class)
       ->add('entity_type.manager', EntityTypeManagerInterface::class)
       ->add('logger.factory', LoggerChannelFactory::class)
+      ->add('request_stack', RequestStack::class)
       ->index(0);
     $container = (new Chain($this))
       ->add(Container::class, 'get', $containerOptions)
+      ->add(RequestStack::class, 'getCurrentRequest', (Request::create(self::BASE_URL)))
       ->getMock();
     \Drupal::setContainer($container);
 
@@ -53,8 +64,8 @@ public function testSitemapStaticLinks(): void {
     dkan_js_frontend_simple_sitemap_arbitrary_links_alter($arbitrary_links, $simpleSitemap);
 
     $this->assertEquals($arbitrary_links, [
-      DKAN_JS_FRONTEND_DEFAULT_STATIC_LINK + ['url' => '/home'],
-      DKAN_JS_FRONTEND_DEFAULT_STATIC_LINK + ['url' => '/about'],
+      DKAN_JS_FRONTEND_DEFAULT_STATIC_LINK + ['url' => self::BASE_URL . '/home'],
+      DKAN_JS_FRONTEND_DEFAULT_STATIC_LINK + ['url' => self::BASE_URL . '/about'],
     ]);
   }
 
@@ -72,9 +83,11 @@ public function testSitemapDatasetLinks(): void {
       ->add('entity_type.repository', EntityTypeRepository::class)
       ->add('entity_type.manager', EntityTypeManagerInterface::class)
       ->add('dkan.metastore.service', Service::class)
+      ->add('request_stack', RequestStack::class)
       ->index(0);
     $container = (new Chain($this))
       ->add(Container::class, 'get', $containerOptions)
+      ->add(RequestStack::class, 'getCurrentRequest', (Request::create(self::BASE_URL)))
       ->add(Service::class, 'getRangeUuids', [1, 2])
       ->getMock();
     \Drupal::setContainer($container);
@@ -85,9 +98,10 @@ public function testSitemapDatasetLinks(): void {
       ->getMock();
     dkan_js_frontend_simple_sitemap_arbitrary_links_alter($arbitrary_links, $simpleSitemap);
 
+    $host = \Drupal::request()->getSchemeAndHttpHost();
     $this->assertEquals($arbitrary_links, [
-      DKAN_JS_FRONTEND_DEFAULT_DATASET_LINK + ['url' => '/dataset/1'],
-      DKAN_JS_FRONTEND_DEFAULT_DATASET_LINK + ['url' => '/dataset/2'],
+      DKAN_JS_FRONTEND_DEFAULT_DATASET_LINK + ['url' => self::BASE_URL . '/dataset/1'],
+      DKAN_JS_FRONTEND_DEFAULT_DATASET_LINK + ['url' => self::BASE_URL . '/dataset/2'],
     ]);
   }
 
@@ -106,11 +120,13 @@ public function testSitemapErrorNoDatasetRouteFound(): void {
       ->add('entity_type.manager', EntityTypeManagerInterface::class)
       ->add('logger.factory', LoggerChannelFactory::class)
       ->add('dkan.metastore.service', Service::class)
+      ->add('request_stack', RequestStack::class)
       ->index(0);
     $containerChain = (new Chain($this))
       ->add(Container::class, 'get', $containerOptions)
       ->add(LoggerChannelFactory::class, 'get', LoggerChannelInterface::class)
-      ->add(LoggerChannelInterface::class, 'error', NULL, 'error');
+      ->add(LoggerChannelInterface::class, 'error', NULL, 'error')
+      ->add(RequestStack::class, 'getCurrentRequest', (Request::create(self::BASE_URL)));
     \Drupal::setContainer($containerChain->getMock());
 
     $arbitrary_links = [];