net/http: TestServerNoDate failures

[gopherbot]

#!watchflakes
post <- pkg == "net/http" && test == "TestServerNoDate"

Issue created automatically to collect these failures.

Example (log):

--- FAIL: TestServerNoDate (0.01s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && test == "TestServerNoDate"

2023-02-01 21:30 darwin-amd64-race go@4b7f7eef net/http.TestServerNoDate (log)

--- FAIL: TestServerNoDate (0.01s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && test == "TestServerNoDate"

2023-02-01 19:47 linux-amd64-race go@ab0f0459 net/http.TestServerNoDate (log)

--- FAIL: TestServerNoDate (0.00s)

— watchflakes

[cherrymui]

Dup of #58168