diff --git a/src/transform/sanitize.ts b/src/transform/sanitize.ts
index a51d5940..8cb5d9b9 100644
--- a/src/transform/sanitize.ts
+++ b/src/transform/sanitize.ts
@@ -301,6 +301,7 @@ const htmlAttrs = [
     'aria-describedby',
     'data-*',
     'wide-content',
+    'sandbox',
     'sticky-header',
 ];