clean up some outdated code and implement a few performance
improvements. most notably, the response from `upgradeWebSocket` is now
actually used as a normal response.
a followup pr will rework raw upgrades to a greater extent
This is a primordialization effort to improve resistance against users
tampering with the global `Object` prototype.
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Landing part of https://github.com/denoland/deno/pull/21903
This will allow us to more easily refactor `serveHttp` to live on top of
`serve` by splitting the websocket code out. There's probably a lot more
we could do here but this helps.
