Large number of duplicate strings for concurrent websocket connections

[davidfowl]

Seems like something we could consider interning:

We could probably eliminate this by making these known headers (though I think we should potentially remove other known headers and replace them with the websocket headers 😄).

cc @benaadams

[benaadams]

Should resolve it? #31311

It won't get rid of localhost:5000 though as the Host value; that is amortized across many requests and the WebSocket upgrade is just one per connection. Would need a different approach.

Could switch it in the "allowed origins" middleware; so if you specify allowed origins and one matches then it could switch the header value for the string object in the middleware options? 🤔

[ghost]

Thanks for contacting us.
We're moving this issue to the Next sprint planning milestone for future evaluation / consideration. Because it's not immediately obvious that this is a bug in our framework, we would like to keep this around to collect more feedback, which can later help us determine the impact of it. We will re-evaluate this issue, during our next planning meeting(s).
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