esm_entry_point / extension macro; ReferenceError

extension!(
    ext_name,
    ops = [op_register_entrypoint],
    esm_entry_point = "ext:ext_name/js_playground.js",
    esm = [ dir "src/ext", "ext_name.js" ],
);

extension!(
    ext_name,
    ops = [op_register_entrypoint],
    esm_entry_point = "ext:ext_name/js_playground.js",
    esm = [ dir "src/ext", "ext_name.js" ],
);