data-autoinit is not working

[o-alquimista]

trafficstars

<div>
  <label for="cpf">CPF</label>
  <input id="cpf" type="tel" class="masked" pattern="[0-9]{3}.[0-9]{3}.[0-9]{3}-[0-9]{2}" placeholder="999.999.999-99" maxlength="14" title="Número de CPF, incluindo pontos e hífen. Exemplo: 000.000.000-00">
</div>

let inputMask = new InputMask();

Manual initialization is working, but auto initialization via script[data-autoinit=true] is not.

<script defer src="/path/to/file.js" data-autoinit="true"></script>

I'm using commit afc9fbba5d294a0cda973a9cd1a4aabe2eb37108.