Fresh 2 + vite websocket not working on dev server

[kitsonk]

I have an application where I am trying to use a websocket and when running under the dev server with Fresh 2 and vite, the websocket connection is just "pending" and it is never received by the app, just gets swallowed, but a production build works as expected.

I can see the "dev" websocket for HMR connecting just fine.

I tried searching for wider issues related to vite and dev server, and I have looked at the Fresh 2 plugin, but I am not seeing anything that sounds right, so I opened this issue.

[CertainLach]

Duplicate of #3350

The fix is ready: #3446
But it wasn't reviewed nor merged.

[marvinhagemeister]

@CertainLach It's very unlikely that that patch is ever going to be merged into Deno as it deviates from the web platform. The problem that websocket events are not forwarded is an issue with Fresh and vite, not with Deno.

[CertainLach]

it deviates from the web platform

But it doesn't, the only thing it deviates from is node.js