hyper-sdk: Webpack dat-dns not found

When using the dat-sdk as described in the README with Webpack/Vue it does have an issue loading dat-dns:

const SDKPromise = require('dat-sdk/promise')

Error message:

* dns in ./node_modules/node-dat-archive/node_modules/dat-dns/index.js

The sample, see App.vue for the problematic import: datbox.zip