Define GET/POST fallback for Search / Type Index when QUERY is unavailable

[ebremer]

#179 made QUERY primary for Search / Type Index. Review/call asked for GET/POST fallback where QUERY is not available (pchampin, TallTed, jeremycaine). Related: #184.

Ask: Keep QUERY primary; document GET (URI-sized queries) and/or POST (body) as fallback, plus how clients discover/choose the path. Resolve before CR.

Current data on software ecosystem:

Stack	Status	Repo	★ Stars	PR / issue	Days after RFC (Jun 16 = day 0)	Notes
Go (net/http)	⚠️ Manual	golang/go	135,304	Issue #80058 — open · PR #80134 — open	+2 issue (Jun 18) · PR +8 (Jun 24)	Raw method strings work; MethodQuery proposal + PR not merged
Node.js (core)	✅ Shipped	nodejs/node	118,327	v21.7.2 release (llhttp 9.2.0 bump, no single PR)	−804 (Apr 3, 2024)	Earliest shipper
Deno	⚠️ Open	denoland/deno	107,760	Issue #36186 — open	+34 (Jul 20)	Feature request for full RFC 10008 support; fetch() may already accept method string
Bun	⚠️ Open	oven-sh/bun	94,911	Issue #34839 — open	+34 (Jul 20)	Feature request for full RFC 10008 support; no native first-class support yet
Express	✅ Works	expressjs/express	69,226	Issue #5615 — closed completed, no code PR	−787 (Apr 20, 2024)	Filed 17 days after Node shipped parsing
Spring	❌ Not shipped	spring-projects/spring-framework	60,128	PR #34993 — open (fixes #32975); #36988 closed as duplicate	−378 (Jun 3, 2025) · revived +15–17	Community-approved Jul 3; still open
Rails	⚠️ PR open	rails/rails	58,634	PR #57973 — open (proposal thread)	~+6 proposal → +17 PR (Jul 3)	Rails core reviewed +30; active through +31
curl	✅ Generic	curl/curl	42,429	none needed	n/a	-X QUERY works today
ASP.NET Core	⚠️ Preview	dotnet/aspnetcore	38,222	PR #65714 — shipped in 11 Preview 4	−35 (May 12, 2026)	OpenAPI recognizes QUERY as operation type
Fastify	✅ Shipped (main)	fastify/fastify	36,767	PR #6832 — merged · closes #6807	+5 issue (Jun 21) · merged +30 (Jul 16)	First-class QUERY (not only addHttpMethod); release tag TBC
nginx	⚠️ Open	nginx/nginx	31,171	PR #1488 — open · (#1511 closed, not merged)	+6 (Jun 22)	Recognition only; body cache key TBD
OpenAPI	✅ Spec-level	OAI/OpenAPI-Specification	31,098	3.2.0 announcement	−266 (Sep 23, 2025)	—
WHATWG HTML	⚠️ Open	whatwg/html	9,329	Issue #12594 — open (<form method="query">)	+1 (Jun 17)	Needs implementer interest; today falls back to GET
Cloudflare workerd	⚠️ Open	cloudflare/workerd	8,411	Issue #6849 — open	+14 (Jun 30)	Body-keyed QUERY caching (RFC 10008 §2.7) via Cache API
Tomcat	✅ Merged	apache/tomcat	8,211	PR #1026 — merged	+15 (Jul 1)	Release placement TBC
undici	✅ Shipped	nodejs/undici	7,651	Issue #5454 — closed · PR #5459 — merged	+11 issue (Jun 27) · PR +13 (Jun 29) · first npm 8.6.0 at +16	Still present in 8.8.0 (+34)
Jetty	⚠️ Open	jetty/jetty.project	4,091	PR #15316 — open	+5 (Jun 21)	Retargeted to Jetty 13.0.x
Apache httpd	❓ Nothing	apache/httpd	4,034	none found	n/a	Passthrough only
Browsers / fetch()	✅ Works, unofficial	whatwg/fetch	2,243	Issue #1938 — open	+14 (Jun 30)	Plus Mozilla #1430 (open) · WebKit #692 (closed invalid)
Rust http crate	✅ Shipped	hyperium/http	1,362	PR #798 — merged · closes #743; #847 closed as duplicate	0 (Jun 16)	Method::QUERY constant; safe + idempotent
Jakarta Servlet	✅ Completed	jakartaee/servlet	325	Issue #1068 — closed completed	+9 (Jun 25) · closed ≤+34	Cites Tomcat PR
W3C LWS	✅ Merged, contested	w3c/lws-protocol	26	PR #179 — merged	+10 · merged ≈+34	Fallback debate = your thread
RFC 10008	✅ Published	IETF HTTP WG	—	RFC 10008 (datatracker)	0 (Jun 16, 2026)	IESG approval Nov 20, 2025 = −208

[ebremer]

I've shared my data (as well as some of @jeswr 's work which has been incorporated) at https://github.com/ebremer/RFC10008support
I will be keeping it up to date to track HTTP QUERY adoption in the various software stacks and edge systems.