Sample
net/http 1.26.5: Prove that closing http.Response.Body without first draining it prevents http.Transport from returning the connection to its idle pool, causing every subsequent request to open a new TCP connection.
Verified sample for golang net/http 1.26.5: Prove that closing http.Response.Body without first draining it prevents http.Transport from returning the…
sha256:662e46f98237fd4dd11b25d79fe74e5c056522a121badb33388fd92287b78bae
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
go linux x64 go go gomod
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-16 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
Case
HOW- Goal
- Prove that closing http.Response.Body without first draining it prevents http.Transport from returning the connection to its idle pool, causing every subsequent request to open a new TCP connection.
- Packages
- Symbols
-
- http.Transport
- http.Response.Body
- httptrace.GotConnInfo
- Environment
- go
- Created
- 2026-08-16T14:47:36Z
Contract
- When resp.Body.Close() is called without draining the body first, http.Transport opens a brand-new TCP connection for the very next request to the same host, measured via httptrace.GotConnInfo.Reused being false.
- When io.Copy(io.Discard, resp.Body) precedes resp.Body.Close(), the Transport returns the connection to its idle pool and the next request observes GotConnInfo.Reused true, dialling zero new connections.
Files
- NOTES.md
- csx.json
- drain_test.go
- go.mod