diff --git a/src/utils/html-content-length.js b/src/utils/html-content-length.js
index d01cb130..517f5efc 100644
--- a/src/utils/html-content-length.js
+++ b/src/utils/html-content-length.js
@@ -1,5 +1,6 @@
 const div = document.createElement('div');
 export default function htmlContentLength(html) {
+  if (!html) return 0;
   div.innerHTML = html;
   return div.innerText.length;
 }