diff --git a/dist/performance.js b/dist/performance.js
index 05d5513..086d6e4 100644
--- a/dist/performance.js
+++ b/dist/performance.js
@@ -325,6 +325,7 @@ function getLcpResponseObject(lcpUrl) {
 }
 
 function getParameterCaseInsensitive(object, key) {
+  if (!object || !key) return;
   return object[Object.keys(object).find(k => k.toLowerCase() === key.toLowerCase())];
 }