diff --git a/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php b/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php
index 19ac573..28a2857 100644
--- a/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php
+++ b/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php
@@ -124,8 +124,8 @@ public function optimize(array $css_assets) {
     $already_loaded = isset($ajax_page_state) ? explode(',', $ajax_page_state['libraries']) : [];
     $query_args = [
       'theme' => $this->themeManager->getActiveTheme()->getName(),
-      'libraries' => $this->dependencyResolver->getMinimalRepresentativeSubset($libraries),
-      'already_loaded' => $this->dependencyResolver->getMinimalRepresentativeSubset($already_loaded),
+      'include' => implode(',', $this->dependencyResolver->getMinimalRepresentativeSubset($libraries)),
+      'exclude' => implode(',', $this->dependencyResolver->getMinimalRepresentativeSubset($already_loaded)),
     ];
     $query = UrlHelper::buildQuery($query_args);
     foreach ($css_assets as $order => $css_asset) {
diff --git a/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php b/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php
index 1082970..016661b 100644
--- a/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php
+++ b/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php
@@ -125,13 +125,13 @@ public function optimize(array $js_assets) {
     if ($libraries) {
       // Generate a URL for the group, but do not process it inline, this is
       // done by \Drupal\system\controller\JsAssetController
-      $ajax_page_state = $this->requestStack->getCurrentRequest()->query->get('ajax_page_state');
+      $ajax_page_state = $this->requestStack->getCurrentRequest()->get('ajax_page_state');
       $already_loaded = isset($ajax_page_state) ? explode(',', $ajax_page_state['libraries']) : [];
 
       $query_args = [
-        'libraries' => $this->dependencyResolver->getMinimalRepresentativeSubset($libraries),
+        'include' => implode(',', $this->dependencyResolver->getMinimalRepresentativeSubset($libraries)),
         'theme' => $this->themeManager->getActiveTheme()->getName(),
-        'already_loaded' => $this->dependencyResolver->getMinimalRepresentativeSubset($already_loaded),
+        'exclude' => implode(',', $this->dependencyResolver->getMinimalRepresentativeSubset($already_loaded)),
       ];
       $header_query = UrlHelper::buildQuery($query_args + ['scope'  => 'header']);
       $footer_query = UrlHelper::buildQuery($query_args + ['scope'  => 'footer']);
diff --git a/core/modules/system/src/Controller/AssetControllerBase.php b/core/modules/system/src/Controller/AssetControllerBase.php
index d56c59e..115c7ab 100644
--- a/core/modules/system/src/Controller/AssetControllerBase.php
+++ b/core/modules/system/src/Controller/AssetControllerBase.php
@@ -187,9 +187,9 @@ public function deliver(Request $request, $file_name) {
     $this->themeManager->setActiveTheme($active_theme);
 
     $attached_assets = new AttachedAssets();
-    $attached_assets->setLibraries($request->query->get('libraries'));
-    if ($request->query->has('already_loaded')) {
-      $attached_assets->setAlreadyLoadedLibraries($request->query->get('already_loaded'));
+    $attached_assets->setLibraries(explode(',', $request->query->get('include')));
+    if ($request->query->has('exclude')) {
+      $attached_assets->setAlreadyLoadedLibraries(explode(',', $request->query->get('exclude')));
     }
     $groups = $this->getGroups($attached_assets, $request);