net/http/fcgi: race detected during execution of TestResponseWriterSniffsContentType test [1.15 backport] #41193
Description
@dmitshur requested issue #41167 to be considered for backport to the next 1.15 minor release.
Sounds good. Since the race isn't new and critical, the fix can be made available in Go 1.16 and we don't need to backport it. However, let's skip the new test so that the race builders continue to pass and provide full coverage on the release branches.
@gopherbot Please backport to both Go 1.15 and 1.14, but only the test fix.