Is it possible to disable both server.hmr and server.hmr.overlay?

[FrankFang]

When I set server.hmr to false, the server.hmr.overlay functionality is still enabled;
When I set server.hmr.overlay to false, the server.hmr functionality remains enabled;
It appears impossible to disable both.

[chrisjcthomas]

From the Vite config docs, these two switches control different things:

• server.hmr: false disables the HMR connection itself
• server.hmr.overlay: false disables the error overlay

So there isn't a separate third "disable both together" flag because those are already the two knobs.

If you're still seeing an overlay after setting server.hmr.overlay = false, my first guess would be that the overlay you're seeing is not the HMR error overlay controlled by that option.

So the intended config would be:

export default defineConfig({
  server: {
    hmr: false,
  },
})

or, if you still want HMR but not the overlay:

export default defineConfig({
  server: {
    hmr: {
      overlay: false,
    },
  },
})

If you can share what exact overlay/error is still appearing, that would help confirm whether it's coming from HMR or from a different dev-server path.