diff --git a/action.php b/action.php
index 92a20c6..1092ef0 100644
--- a/action.php
+++ b/action.php
@@ -33,6 +33,12 @@ class action_plugin_luxtools extends ActionPlugin
             $this,
             "addScripts",
         );
+        $controller->register_hook(
+            "DOKUWIKI_STARTED",
+            "AFTER",
+            $this,
+            "provideJsInfo",
+        );
         $controller->register_hook(
             "RENDERER_CONTENT_POSTPROCESS",
             "BEFORE",
@@ -132,8 +138,20 @@ class action_plugin_luxtools extends ActionPlugin
                 "src" => $base . $script,
             ];
         }
+    }
 
-        // Pass OMDb API key to client-side JavaScript.
+    /**
+     * Pass plugin data to client-side JavaScript via JSINFO.
+     *
+     * Must run before TPL_METAHEADER_OUTPUT because JSINFO is serialized
+     * during tpl_metaheaders() before that event fires.
+     *
+     * @param Event $event
+     * @param mixed $param
+     * @return void
+     */
+    public function provideJsInfo(Event $event, $param)
+    {
         // Intentional: the key is exposed to the browser for direct OMDb lookups.
         global $JSINFO;
         $JSINFO['luxtools_omdb_apikey'] = (string)$this->getConf('omdb_apikey');