diff --git a/datalayer.module b/datalayer.module
index 495fffa..f22729c 100644
--- a/datalayer.module
+++ b/datalayer.module
@@ -125,6 +125,30 @@ function datalayer_page_attachments(array &$attachments) {
     $attachments['#attached']['library'][] = 'datalayer/helper';
   }
 
+
+  if (empty($attachments['#attached']['html_head'])) {
+    $attachments['#attached']['html_head'] = [];
+  }
+
+  $datalayer_attachment = datalayer_get_data_from_page();
+  $attachments['#attached']['html_head'][] = [
+    [
+      '#type' => 'html_tag',
+      '#tag' => 'script',
+      // Use json_encode() instead of
+      // Drupal\Component\Serialization\Json::encode() because we want to pass
+      // the additional JSON_UNESCAPED_UNICODE flag.
+      '#value' => 'window.dataLayer = window.dataLayer || []; window.dataLayer.push(' . json_encode($datalayer_attachment, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT | JSON_UNESCAPED_UNICODE) . ');',
+    ],
+    'datalayers-js',
+  ];
+
+  // If we're exposing user data make sure that context is added to the
+  // cachability for the page. And, we add this regardless of configuration
+  // becasue in datalayer_get_data_from_page() we always add userUid no matter
+  // what.
+  $attachments['#cache']['contexts'][] = 'user';
+  
   // Output configured language data.
   $languages = \Drupal::languageManager()->getLanguages();
   if (count($languages)) {
diff --git a/src/DatalayerLazyBuilders.php b/src/DatalayerLazyBuilders.php
index af79708..807d7a2 100644
--- a/src/DatalayerLazyBuilders.php
+++ b/src/DatalayerLazyBuilders.php
@@ -57,7 +57,7 @@ class DatalayerLazyBuilders implements TrustedCallbackInterface {
       // Use json_encode() instead of
       // Drupal\Component\Serialization\Json::encode() because we want to pass
       // the additional JSON_UNESCAPED_UNICODE flag.
-      '#value' => 'window.dataLayer = window.dataLayer || []; window.dataLayer.push(' . json_encode($datalayer_attachment, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT | JSON_UNESCAPED_UNICODE) . ');',
+      // '#value' => 'window.dataLayer = window.dataLayer || []; window.dataLayer.push(' . json_encode($datalayer_attachment, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT | JSON_UNESCAPED_UNICODE) . ');',
     ];
     return $build;
   }