[node-fetch-server] Backpressure handling

[rossrobino]

I ran into a backpressure issue when using node fetch server, I think it has to do with how the response body is being handled here: https://github.com/mjackson/remix-the-web/blob/main/packages/node-fetch-server/src/lib/request-listener.ts#L220

I looked into SvelteKit and srvx implementations, in both of these libraries they are checking if res.write is true, if not, they wait for the drain event to occur before proceeding again. This fixed the issue for me, when the stream's buffer is full it will wait for it to empty before continuing.

[mjackson]

Thanks for bringing this to my attention, @rossrobino. This will be fixed in the next release.

[mjackson]

BTW this was fixed and released in @remix-run/node-fetch-server v0.8.0. Note the package name has changed from @mjackson/node-fetch-server.