diff --git a/previewers/betatest/js/rocrate.js b/previewers/betatest/js/rocrate.js
index 9cad63e..b21bb48 100644
--- a/previewers/betatest/js/rocrate.js
+++ b/previewers/betatest/js/rocrate.js
@@ -9,13 +9,14 @@ function translateBaseHtmlPage() {
 
 async function writeContentAndData(data, fileUrl, file, title, authors) {
     addStandardPreviewHeader(file, title, authors);
+    const scripts = document.getElementById("scripts");
     var s1 = document.createElement("script");
     s1.type = "application/ld+json";
     s1.text = data;
-    document.getElementById("scripts").append(s1);
+    scripts.append(s1);
     var s2 = document.createElement("script");
     s2.type = "text/javascript";
     s2.src = "js/ro-crate-dynamic.js";
-    document.getElementById("scripts").append(s2);
-    dispatchEvent(new Event('load'));
+    scripts.append(s2);
+    scripts.dispatchEvent(new Event('load'));
 }