import crypto from 'crypto'
import Document, { Head, Main, NextScript } from 'next/document'
const cspHashOf = text => {
const hash = crypto.createHash('sha256')
hash.update(text)
return `'sha256-${hash.digest('base64')}'`
}
export default class extends Document {
render () {
const csp = `default-src 'self'; script-src 'self' ${cspHashOf(
NextScript.getInlineScriptSource(this.props)
)}`
return (
)
}
}