net/http: TestIdentityResponse failures

[gopherbot]

#!watchflakes
default <- pkg == "net/http" && test == "TestIdentityResponse"

Issue created automatically to collect these failures.

Example (log):

--- FAIL: TestIdentityResponse (0.00s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net/http" && test == "TestIdentityResponse"

2023-07-06 19:41 linux-amd64-race go@312920c0 net/http.TestIdentityResponse (log)

--- FAIL: TestIdentityResponse (0.00s)

— watchflakes

[bcmills]

Duplicate of #61302

[bcmills]

Duplicate of #61301