^{Originally posted by Desuuuu June 9, 2026}
When using lazy barrel with version 4.7.7 of @smithy/node-http-handler (used by the AWS SDK packages), rolldown seems to be dropping an import from node:http2.

Here's a minimal reproduction: https://github.com/Desuuuu/rolldown-lazybarrel-issue

This fails with the following error:

> node ./dist/index.js

file://dist/index.js:18823
        ({constants} = node_http2);
        ^

ReferenceError: node_http2 is not defined

I'm not sure if the issue comes from rolldown or from @smithy/node-http-handler since the issue only started appearing since their latest release (I would guess this change specifically).