When the 'root' configuration is set to something other than the default, hot reload doesn't work

[Arthur944]

Potential solution

I was able to get this to work by adding { root: '.' } in previewServer.mjs to the createServer call

Describe the bug

Hot reload doesn't work if the 'root' option is configured to something other than the default in vite.config.ts.

Reproduce

Take the example project, change the 'root' field in vite.config.ts to something else (like "test-root"). Change the 'root' field to '.' in the test.root option so that tests still work. Run vitest-preview and run a test.

https://stackblitz.com/edit/vitest-preview-9hat82?file=src%2FApp.test.tsx

Expected behavior

vitest-preview should hot reload, but it doesn't. You only see the results after a refresh.