diff --git a/src/esm/hook/resolve.ts b/src/esm/hook/resolve.ts
index 1b7a85fb..4299a446 100644
--- a/src/esm/hook/resolve.ts
+++ b/src/esm/hook/resolve.ts
@@ -358,6 +358,7 @@ let resolve: ResolveHook = async (
 	if (
 		requestNamespace
 		&& !resolved.url.includes(namespaceQuery)
+		&& !resolved.url.startsWith('data:')
 	) {
 		resolved.url += (resolved.url.includes('?') ? '&' : '?') + namespaceQuery + requestNamespace;
 	}