net/http: Requests with already canceled context are passed to Handlers #18449
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What did you do?
If possible, provide a recipe for reproducing the error.
Run this server: https://play.golang.org/p/s4dAekw0Tn — it listens 2 sockets and proxies requests from one address to another to ensure final endpoint receives requests via single connection.
This issue likely related to #18447
What did you expect to see?
What did you see instead?
Does this issue reproduce with the latest release (go1.7.4)?
The text was updated successfully, but these errors were encountered:
It depends on whether #18447 is a regression from 1.7 or it's just a matter of documenting extra cancelation case in Request.Context() docs. If former, this bug is likely a duplicate, if latter, it's probably a separate issue — it seems that Handlers can receive Requests with already canceled context if multiple requests are sent via single http/1.1 keep-alive connection.
I'm able to reproduce this without httputil.ReverseProxy just using netcat against final endpoint (localhost:8081) as well.
Here's a better reproduction: https://play.golang.org/p/Y7MEdQY27J