error(), nuxt

error: 

https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Error

nuxt's error 強制調用：

    this.$nuxt.error({ statusCode: 404, message: "hi" })

nuxt's server error (maybe about ssr):

    https://blog.lichter.io/posts/nuxtjs-change-server-error-page/

error handling時機：

    https://medium.com/@benrichardson_5275/handling-errors-while-server-side-rendering-your-code-in-nuxt-js-d733ed76239d

public async asyncData (context: any): Promise<any> {

const { params, query, route } = context;

const websiteCode = getWebsiteCode(params.region);

try {

throw new Error("hj");

} catch (e) {

console.log(e.name); // 'MyError'

console.log(e.message); // 'custom message'

context.error(e)

}

    // ...