Detecting premature connection close by client with Deno.serve

[josephrocca]

If I'm serving a long response like this:

Deno.serve((req) => {
  return new Response(".... long response .....");
});

(the real version is actually new Response(readableStream)), then how would I detect if the client has disconnected/aborted the connection mid-way through the response being streamed back to them?

[josephrocca]

Solution here, either via request.signal, or via adding a cancel method to the ReadableStream:

• Native HTTP server: Request.signal should be aborted when request errors or is finished #10829 (comment)