mine/node_modules/@vue/cli-plugin-router/prompts.js

// these prompts are used if the plugin is late-installed into an existing
// project and invoked by `vue invoke`.

const { chalk } = require('@vue/cli-shared-utils')

module.exports = [
  {
    name: 'historyMode',
    type: 'confirm',
    message: `Use history mode for router? ${chalk.yellow(`(Requires proper server setup for index fallback in production)`)}`,
    description: `By using the HTML5 History API, the URLs don't need the '#' character anymore.`
  }
]