diff --git a/http.go b/http.go
index 82b42e5..519df53 100644
--- a/http.go
+++ b/http.go
@@ -138,7 +138,9 @@ func toObject(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 	if data, ok := dataValue.Export().([]byte); ok {
 		obj := u.UnJsonBytes(data, nil)
 		v := u.FinalValue(reflect.ValueOf(obj))
-		return vm.ToValue(v.Interface())
+		if v.IsValid() {
+			return vm.ToValue(v.Interface())
+		}
 	}
 	return nil
 }