[release/10.0] (http2): Lower WINDOWS_UPDATE received on (half)closed stream to stream abortion

[github-actions]

Backport of #63873 to release/10.0

(http2): Lower WINDOWS_UPDATE received on (half)closed stream to stream abortion

Change affects the server HTTP/2 behavior in the case client sends the RST_STREAM frame (moving stream to half-closed or closed state) and then sends another packet - WINDOW_UPDATE. Server behavior varies in this case (RFC HTTP/2 does not describe this case extremely clear) - for example HTTP.SYS does interpet this as a stream-level error (ignore of WINDOW_UPDATE packet); but Kestrel is more strict and sends the GO_AWAY packet closing not only the stream, but also the whole connection.

Such restrictive behavior of Kestrel impacts the client, which observes cancellations and has to re-establish the connection frequently.

Fixes #63726

Customer Impact

1P Customer which processes intensive traffic of another 1P customer with a Golang-based client observes high volume of cancellations. This not only impacts the performance where a new connection has to be established, but also means all streams existing on the connection were lost, resulting in bunch of customers seeing high latency.

Regression?

• Yes
• No

Risk

• High
• Medium
• Low

Small change in behavior making Kestrel less restrictive. Also is being tested by the 1P team.

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

---

When servicing release/2.3

• Make necessary changes in eng/PatchConfig.props