cmd/go: GOPROXY=off results in no module being downloaded

[3052]

Go version

go version go1.23.0 windows/amd64

Output of go env in your module/workspace:

set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\Steven\AppData\Local\go-build
set GOENV=C:\Users\Steven\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\Steven\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\Steven\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=D:\go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=D:\go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.23.0
set GODEBUG=
set GOTELEMETRY=off
set GOTELEMETRYDIR=C:\Users\Steven\AppData\Roaming\go\telemetry
set GCCGO=gccgo
set GOAMD64=v1
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=0
set GOMOD=D:\Desktop\go.mod
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Windows\TEMP\go-build607440740=/tmp/go-build -gno-record-gcc-switches

What did you do?

$env:GOPROXY = 'off'
go mod init hello
go get 41.neocities.org/widevine@v1.5.8

What did you see happen?

go: downloading 41.neocities.org/widevine v1.5.8
go: 41.neocities.org/widevine@v1.5.8: module lookup disabled by GOPROXY=off

What did you expect to see?

note if I use direct it fails as well:

> $env:GOPROXY = 'direct'
> go get 41.neocities.org/widevine@v1.5.8
go: downloading 41.neocities.org/widevine v1.5.8
go: 41.neocities.org/widevine@v1.5.8: verifying module:
41.neocities.org/widevine@v1.5.8: reading
https://sum.golang.org/lookup/41.neocities.org/widevine@v1.5.8: 404 Not Found

server response: not found: 41.neocities.org/widevine@v1.5.8: unrecognized
import path "41.neocities.org/widevine": https fetch: Get
"https://41.neocities.org/widevine?go-get=1": net/http: TLS handshake timeout

note the module is definitely reachable:

> curl -I -L -w 'time_total = %{time_total}' https://41.neocities.org/widevine?go-get=1
HTTP/2 301
date: Sat, 04 Jan 2025 16:48:46 GMT
content-type: text/html
content-length: 162
location: https://41.neocities.org/widevine/?go-get=1
server: neocities
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-security-policy: upgrade-insecure-requests; default-src * 'unsafe-inline' 'unsafe-eval' data: blob:; connect-src 'self' data: blob:; form-action 'self'; img-src * data:; script-src * 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline'; font-src * data:; object-src *; media-src *; frame-src *;
x-neocities-cdn: cdn-sea-1
upgrade-insecure-requests: 1
x-cached: MISS

HTTP/2 200
date: Sat, 04 Jan 2025 16:48:46 GMT
content-type: text/html
content-length: 15137
vary: Accept-Encoding
last-modified: Sat, 04 Jan 2025 15:38:35 GMT
etag: "677955fb-3b21"
server: neocities
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-security-policy: upgrade-insecure-requests; default-src * 'unsafe-inline' 'unsafe-eval' data: blob:; connect-src 'self' data: blob:; form-action 'self'; img-src * data:; script-src * 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline'; font-src * data:; object-src *; media-src *; frame-src *;
x-neocities-cdn: cdn-sea-1
upgrade-insecure-requests: 1
x-cached: HIT
accept-ranges: bytes

time_total = 0.723891

[seankhliao]

https://go.dev/ref/mod#environment-variables

Working as intended.