Ionide-vscode-fsharp: Can't connect to FSAC if HTTP_PROXY is defined.

[vasily-kirichenko]

[11:29:15 DEBUG] got FSAC line, is it the started message? true
[11:29:15 DEBUG] FSAC stdout: [I] 2016-11-07T08:29:15.5075536Z: listener started in 22.175 ms with binding 127.0.0.1:8414 [Suave.Tcp.tcpIpServer]

[11:29:15 INFO ] REQ (001) -> {lint}, File = "~\Source\xxx.fs"
[11:29:15 INFO ] REQ (002) -> {project}, File = "~\Source\xxx.fsproj"
[11:29:15 INFO ] REQ (003) -> {parse}, File = "~\Source\xxx.fs"
[11:29:16 ERROR] RES (002) <- {project} ERROR in 1013 ms: Error: connect EACCES 127.0.0.1:8080 Data=undefined
[11:29:16 ERROR] RES (001) <- {lint} ERROR in 1018 ms: Error: connect EACCES 127.0.0.1:8080 Data=undefined
[11:29:16 INFO ] REQ (004) -> {tooltip}, File = "~\Source\xxx.fs"
[11:29:16 ERROR] RES (003) <- {parse} ERROR in 1004 ms: Error: connect EACCES 127.0.0.1:8080 Data=undefined
[11:29:17 ERROR] RES (004) <- {tooltip} ERROR in 1014 ms: Error: connect EACCES 127.0.0.1:8080 Data=undefined

Nothing works, obviously.

[Krzysztof-Cieslak]

Is it still the problem?

[c000]

This problem occurs if you maybe have the http_proxy envvar.

[eerohele]

I can confirm that removing the HTTP_PROXY environment variable fixed the issue. Thanks, @c000!

[vasily-kirichenko]

That's great, but what if I _don't want_ / cannot remove http_proxy var?

[fbehrens]

@vasily-kirichenko It you need to keep http_proxy on your machine, you can start code from a shell, on which you change your environment. I use powershell and run $env:HTTP_PROXY="". For more convenience, wrap this in a function and store it in your profile. This way you have your editor running in a controlled environment. On windows the Extensions can be installed without http_proxy

[s952163]

also unset HTTPS_PROXY if necessary :-( but glad codelens is back! :-)

[Krzysztof-Cieslak]

I;ve included fix suggested by @vilinski in 2.22.0, hopefully its fixed.

[vilinski]

Seems it still doesn't work the assumed way: https://github.com/mzabriskie/axios/blob/master/lib/adapters/http.js#L85
However it works without hacks on ionide side with this not yet merged PR of @inthemill to axios:
https://github.com/inthemill/axios/commit/ed47ef8b568018928e4560f7380d1752573a5e32

[hickford]

This is an annoying bug! I work in an enterprise environment where we can only access the web through the corporate proxy server. It's necessary to set the http_proxy environment variable to make many applications work.

Thanks for the links. I agree the upstream bug https://github.com/mzabriskie/axios/issues/434 should be fixed so axios respects the no_proxy environment variable (pull request https://github.com/mzabriskie/axios/pull/565 )

Meanwhile, if it helps anyone else, here's a minimal workaround you can apply on your computer:

1. In a text editor, edit %userprofile%\.vscode\extensions\Ionide.ionide-fsharp-3.1.0\fsharp.js (adjust version number in path if necessary) eg.

2. Find the lines

   var proxy = config.proxy;
   if (!proxy) {

3. Edit them so proxy won't be used for host 127.0.0.1

   var proxy = config.proxy;
   if (!proxy && parsed.hostname !== "127.0.0.1") {

4. Restart Visual Studio Code

[vilinski]

@hickford I also used to use this hack, actually deactivating proxy initialization. But you should do this every ionide update, which is pretty frequent. Actually I use CNTLM with it's own NoProxy option and already forgotten this pain. Now I just update the password hash when forced to change my windows password and have also no problems with other unix-tools like git, npm, etc.

[dh360]

In a text editor, edit %userprofile%\.vscode\extensions\Ionide.ionide-fsharp-3.1.0\fsharp.js

i have no such file ， how can i fix it ?