MtF-wiki/layouts/shortcodes/qrcode.html

<script data-text="{{ .Get 0 }}">
  (function (text) {
    var container = document.createElement("div");
    container.className = "qrcode";
    document.currentScript.replaceWith(container);
    document.addEventListener("DOMContentLoaded", function () {
      new QRCode(container, {
        text: text,
        width: 128,
        height: 128,
        correctLevel: QRCode.CorrectLevel.L,
      });
    });
  })(document.currentScript.dataset.text);
</script>