It blocking window.confirm() return undefine

[karsiong]

step reproduce

1. window.confirm("Confirm delete ")
2. when user click "ok"or "cancel"
3. return undefine when the script is used

<script disable-devtool-auto src='https://cdn.jsdelivr.net/npm/disable-devtool@latest/disable-devtool.min.js' disable-menu='false'></script>