base 'connect-history-api-fallback' for SPA
Koa v2.x don't use yield*, so'koa-connect-history-api-fallback' can't adapter for Koa v2.x .
Adapter for 'connect-history-api-fallback' for use with Koa ^2.0.0.
1.use 'koa2-history-api-callback' 2.use 'koa-convert' convert old middleware ...
$ npm install --save 'koa2-history-api-callback'
const Koa = require('koa')
const historyFallback = require('koa2-history-api-callback')
app.use(historyFallback())
app.use('other middleware')