diff --git a/data/elements.txt b/data/elements.txt
index e5ecd55..8c0fe5b 100644
--- a/data/elements.txt
+++ b/data/elements.txt
@@ -12509,4 +12509,4 @@ body > .page-container > .flex > #header > aside.bg-light.color-main.full-width.
 .zbottom-cookie-container-outer
 module-rgpd-component
 .consent.consent__side--right-bottom
-iframe[src="https://www.tumblr.com/dashboard/iframe/consent"]
+iframe[src="https://www.tumblr.com/dashboard/iframe/consent"]
\ No newline at end of file
diff --git a/scripts/content.js b/scripts/content.js
index 13e74ac..5c75619 100644
--- a/scripts/content.js
+++ b/scripts/content.js
@@ -60,7 +60,7 @@ const check = (node) =>
   node instanceof HTMLElement &&
   node.parentElement &&
   !["BODY", "HTML"].includes(node.tagName) &&
-  !(node.id && ["APP", "ROOT"].includes(node.id.toUpperCase()));
+  !(node.id && ["APP", "ROOT"].includes(node.id.toUpperCase?.()));
 
 /**
  * @description Cleans DOM