Get correct sentry client in next.js app w/o custom webpack config

getRaven.js

// @see package.json#browser field
const Raven = require('raven')

if (process.env.NODE_ENV === 'production') {
  Raven.config('YOUR_SENTRY_DSN').install()
}

module.exports = Raven

package.json

{
  ...
  "browser": {
    "raven": "raven-js"
  }
}