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kumahq / kuma

🐻 The multi-zone service mesh for containers, Kubernetes and VMs. Built with Envoy. CNCF Sandbox Project.
https://kuma.io/install
Apache License 2.0
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HTTP/1.1 Header casing #11093

Open bcollard opened 3 months ago

bcollard commented 3 months ago

Description

Please add support for header casing propagation.

Some legacy apps (or language frameworks) don't support HTTP 2 headers with lower casing. For instance, some client apps create HTTP 1.1 headers with a specific case that is expected as-is by the backend app.

We need this on the Kuma Gateway: https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_conn_man/header_casing#config-http-conn-man-header-casing

This option would help some customers adopt the mesh.

In particular, we need this on the upstream cluster HTTP protocol options, with the stateful formatter and the PreserveCaseFormatterConfig (empty config block {} is a good start)

slonka commented 3 months ago

Triage: makes sense

slonka commented 3 months ago

Triage: need to look at https://github.com/envoyproxy/envoy/pull/15619

github-actions[bot] commented 1 day ago

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