diff --git a/lib/extension.js b/lib/extension.js
index bb701f7..d4bf26b 100644
--- a/lib/extension.js
+++ b/lib/extension.js
@@ -179,12 +179,14 @@
 				if (proxies.has(prototype)){
 					prototype = proxies.get(prototype).wrappedOriginal;
 				}
-				const grandPrototype = wrappedReflect.getPrototypeOf(prototype);
-				if (proxies.has(grandPrototype)){
-					const testPrototype = wrappedWindow.Object.create(proxies.get(grandPrototype).wrappedOriginal);
-					const value = originalReflectSetPrototypeOf.call(wrappedReflect, target, testPrototype);
-					if (!value){
-						return false;
+				if (prototype){
+					const grandPrototype = wrappedReflect.getPrototypeOf(prototype);
+					if (proxies.has(grandPrototype)){
+						const testPrototype = wrappedWindow.Object.create(proxies.get(grandPrototype).wrappedOriginal);
+						const value = originalReflectSetPrototypeOf.call(wrappedReflect, target, testPrototype);
+						if (!value){
+							return false;
+						}
 					}
 				}
 				const value = originalReflectSetPrototypeOf.call(wrappedReflect, target, scope.getWrapped(prototype));
@@ -225,10 +227,12 @@
 			if (proxies.has(prototype)){
 				prototype = proxies.get(prototype).wrappedOriginal;
 			}
-			const grandPrototype = wrappedObject.getPrototypeOf(prototype);
-			if (proxies.has(grandPrototype)){
-				const testPrototype = wrappedObject.create(proxies.get(grandPrototype).wrappedOriginal);
-				wrappedObject.setPrototypeOf(target, testPrototype);
+			if (prototype){
+				const grandPrototype = wrappedObject.getPrototypeOf(prototype);
+				if (proxies.has(grandPrototype)){
+					const testPrototype = wrappedObject.create(proxies.get(grandPrototype).wrappedOriginal);
+					wrappedObject.setPrototypeOf(target, testPrototype);
+				}
 			}
 			return wrappedObject.setPrototypeOf(target, scope.getWrapped(prototype));
 		}, window, "");
diff --git a/versions/updates.json b/versions/updates.json
index 88cd0ef..83dbaa2 100644
--- a/versions/updates.json
+++ b/versions/updates.json
@@ -333,6 +333,10 @@
 				{
 					"version": "1.10.20240408",
 					"update_link": "https://canvasblocker.kkapsner.de/versions/canvasblocker_beta-1.10.20240408.xpi"
+				},
+				{
+					"version": "1.11.20240417",
+					"update_link": "https://canvasblocker.kkapsner.de/versions/canvasblocker_beta-1.11.20240417.xpi"
 				}
 			]
 		}