Why viteSSR() in main.js is called three times on server side?

[phlegx]

Hi!

I use Vite, Vue and vite-ssr as described in the readme. I noticed that export default viteSSR(...) is called three times on server side for a normal client side home page call. I use a normal node dev server like this:

...
/* Create vite-ssr server in middleware mode. */
const { createSsrServer } = await import('vite-ssr/dev/index.js')
const viteServer = await createSsrServer({
  server: { middlewareMode: 'true' },
  appType: 'custom',
})

/* Use vite's connect instance as middleware. */
app.use(viteServer.middlewares)
...

Any idea?