h-qpack-blocked-stream
· RFC 9204 §2.1.2, §2.2.1 · interoperability · layer http3 · udp/4493 · MUST
Passing this means: Correctly decoded something valid but demanding.
Anomaly type: response_stream
How each client answered
| Client | Version | Verdict | What happened |
|---|---|---|---|
| curl | libcurl/8.23.0 ngtcp2/1.25.0 | Unsupported | the client advertised SETTINGS_QPACK_MAX_TABLE_CAPACITY of 0 and SETTINGS_QPACK_BLOCKED_STREAMS of 0, which forbid the server's encoder from using the dynamic table at all. |
| quinn | noq fork (189b0ed) | Pass | Decoded it and completed the request. |
| aioquic | 1.3.0 (PyPI wheel) | Pass | Decoded it and completed the request. |
| chromium | build 1248 | Pass | Decoded it and completed the request. |
| quic-go | quic-go v0.61.0 (h1:9So2anK4Tp22) | Unsupported | the client advertised SETTINGS_QPACK_MAX_TABLE_CAPACITY of 0 and SETTINGS_QPACK_BLOCKED_STREAMS of 0, which forbid the server's encoder from using the dynamic table at all. |
| quiche | 0.30.0 (1c8e976) | Unsupported | the client advertised SETTINGS_QPACK_MAX_TABLE_CAPACITY of 0 and SETTINGS_QPACK_BLOCKED_STREAMS of 0, which forbid the server's encoder from using the dynamic table at all. |
| neqo | 0.31.1 (cac2b74) | Pass | Decoded it and completed the request. |
| picoquic | 8162550 | Unsupported | the client advertised SETTINGS_QPACK_MAX_TABLE_CAPACITY of 0 and SETTINGS_QPACK_BLOCKED_STREAMS of 0, which forbid the server's encoder from using the dynamic table at all. |
| ngtcp2 | 3c23148 | Pass | Decoded it and completed the request. |
| lsquic | 4.9.4 (2b30189) | Pass | Decoded it and completed the request. |
| xquic | 2060a44 | Pass | Decoded it and completed the request. |
| msquic | 2.7.0 (7e6525d) | Unsupported | the client advertised SETTINGS_QPACK_MAX_TABLE_CAPACITY of 0 and SETTINGS_QPACK_BLOCKED_STREAMS of 0, which forbid the server's encoder from using the dynamic table at all. |
| quico | 0.7.0 (npm) | Pass | Decoded it and completed the request. |
What the clause requires
Hold the field section, apply the insertions when they arrive on the encoder stream, and complete the request. §2.2.1 makes a section whose Required Insert Count exceeds the decoder's Insert Count a blocked stream — something to be waited on, not an error. Only run when the client advertised both a table capacity and at least one blocked stream; §2.1.2 forbids the encoder from blocking more streams than the decoder promised to support, so a client that permits none cannot be tested on this.
Judged against RFC 9204.
Run this one yourself
Every test is reachable from your own client. Nothing here needs an account.
curl -s https://conformance.pqcrypta.com/catalog.json \
| jq '.tests[] | select(.id == "h-qpack-blocked-stream")'