[Remote Tunnel] Cannot connect to tunnel though proxy because of socket hang up

[antoinetran]

• VSCode Version:1.95.3
• VS Code Remote Tunnel 1.5.2
• Local OS Version: Windows 10
• Remote OS Version: Debian 12
• Remote Extension/Connection Type: Dev Containers/WSL/Remote - Tunnels/VS Code Server
• Logs:

2025-01-16 14:38:04.754 15:50 16/01/2025[error] Error: socket hang up
	at re.from (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:940980)
	at w.<anonymous> (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:963273)
	at w.emit (node:events:531:35)
	at h.forEach.d.<computed> (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:680126)
	at ClientRequest.emit (node:events:519:28)
	at emitErrorEvent (node:_http_client:101:11)
	at Socket.socketOnEnd (node:_http_client:528:5)
	at Socket.emit (node:events:531:35)
	at endReadableNT (node:internal/streams/readable:1696:12)
	at process.processTicksAndRejections (node:internal/process/task_queues:82:21)
	at At.request (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:971833)
	at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
	at async E.axiosRequest (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:75388)
	at async E.request (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:76034)
	at async E.sendRequest (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:69974)
	at async E.listTunnels (c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:64683)
	at async c:\Users\username\.vscode\extensions\ms-vscode.remote-server-1.5.2\dist\node\extension.js:2:1201977
	at async Y0.h (file:///c:/Users/username/Custom/app/vscode/VSCode-win32-x64-1.95.3/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:114:32825)
	at async Promise.all (index 1)
	at async t.RemoteTreeDataProvider.refreshTunnels (c:\Users\username\.vscode\extensions\ms-vscode.remote-explorer-0.4.3\dist\node\extension.js:1:7783)
	at async Promise.all (index 0)

Steps to Reproduce:

1. install VS Code Remote Tunnel
   2.configure in Windows env for the account http_proxy and https_proxy
   3 follow VS Code Remote Tunnel doc about creating a tunnel through github.com

Note: we have a corporate proxy that does MTIM. Self-signed certificates are deployed at OS level.

[antoinetran]

[antoinetran]

I also get these

2025-01-16 17:06:13.222 [info] ExtensionService#_doActivateExtension ms-vscode.remote-server, startup: false, activationEvent: 'onCommand:remote-tunnels.connectCurrentWindowToTunnel'
2025-01-16 17:06:16.673 [trace] [golang.go] INVOKE provider 'o=>o.provideHover(E.revive(r),i,s,n)'
2025-01-16 17:06:16.676 [trace] [golang.go] provider DONE after 3ms
2025-01-16 17:06:18.110 [debug] ProxyResolver#resolveProxy env http://ProxyIp:ProxyPort/https://global.rel.tunnels.api.visualstudio.com/tunnels?includePorts=true&labels=vscode-server-launcher&allLabels=true&global=true&api-version=2023-09-27-preview PROXY ProxyIp:ProxyPort 
2025-01-16 17:06:18.111 [trace] ProxyResolver#net.connect [{"lookupProxyAuthorization":"[Function: bound d_]","host":"ProxyIp","port":ProxyPort}]
2025-01-16 17:06:18.140 [trace] [golang.go] INVOKE provider 'n=>n.provideDocumentHighlights(E.revive(r),i,s)'
2025-01-16 17:06:18.143 [trace] [golang.go] provider DONE after 2ms
2025-01-16 17:06:20.087 [trace] ExtHostCommands#executeCommand workbench.getCodeExchangeProxyEndpoints
2025-01-16 17:06:22.100 [debug] ProxyResolver#resolveProxy env https://mobile.events.data.microsoft.com/OneCollector/1.0?cors=true&content-type=application/x-json-stream PROXY ProxyIp:ProxyPort 
2025-01-16 17:06:22.101 [trace] ProxyResolver#lookupProxyAuthorization callback proxyURL:http://ProxyIp:ProxyPort/ proxyAuthenticate:undefined proxyAuthenticateCache:undefined
2025-01-16 17:06:22.101 [trace] ProxyResolver#net.connect [{"ALPNProtocols":"http/1.1","lookupProxyAuthorization":"[Function: bound d_]","host":"ProxyIp","port":ProxyPort}]
2025-01-16 17:06:22.207 [trace] ProxyResolver#tls.connect [{"protocol":"https:","hostname":"mobile.events.d[32 chars]","method":"POST","headers":"[object Object]","agent":"[object Object]","_defaultAgent":"[object Object]","lookupProxyAuthorization":"[Function: bound d_]","noDelay":true,"servername":"mobile.events.d[32 chars]","secureEndpoint":true,"_vscodeAdditionalCaCerts":"[44 certs]","socket":"[object Object]"}]
2025-01-16 17:06:25.481 [trace] ExtHostCommands#executeCommand workbench.getCodeExchangeProxyEndpoints
2025-01-16 17:06:25.484 [debug] ProxyResolver#resolveProxy env https://github.com/login/oauth/access_token PROXY ProxyIp:ProxyPort 
2025-01-16 17:06:25.484 [trace] ProxyResolver#lookupProxyAuthorization callback proxyURL:http://ProxyIp:ProxyPort/ proxyAuthenticate:undefined proxyAuthenticateCache:undefined
2025-01-16 17:06:25.484 [trace] ProxyResolver#net.connect [{"ALPNProtocols":"http/1.1","lookupProxyAuthorization":"[Function: bound d_]","host":"ProxyIp","port":ProxyPort}]
2025-01-16 17:06:25.525 [trace] ProxyResolver#tls.connect [{"protocol":"https:","slashes":true,"auth":"null","hostname":"github.com","hash":"null","search":"null","query":"null","pathname":"/login/oauth/access_token","href":"https://github.[43 chars]","method":"POST","headers":"[object Object]","agent":"[object Object]","_defaultAgent":"[object Object]","lookupProxyAuthorization":"[Function: bound d_]","noDelay":true,"servername":"github.com","secureEndpoint":true,"_vscodeAdditionalCaCerts":"[44 certs]","socket":"[object Object]"}]
2025-01-16 17:06:25.805 [debug] ProxyResolver#resolveProxy env https://api.github.com/user PROXY ProxyIp:ProxyPort 
2025-01-16 17:06:25.805 [trace] ProxyResolver#lookupProxyAuthorization callback proxyURL:http://ProxyIp:ProxyPort/ proxyAuthenticate:undefined proxyAuthenticateCache:undefined
2025-01-16 17:06:25.805 [trace] ProxyResolver#net.connect [{"ALPNProtocols":"http/1.1","lookupProxyAuthorization":"[Function: bound d_]","host":"ProxyIp","port":ProxyPort}]
2025-01-16 17:06:25.851 [trace] ProxyResolver#tls.connect [{"protocol":"https:","slashes":true,"auth":"null","hostname":"api.github.com","hash":"null","search":"null","query":"null","pathname":"/user","href":"https://api.git[27 chars]","method":"GET","headers":"[object Object]","agent":"[object Object]","_defaultAgent":"[object Object]","lookupProxyAuthorization":"[Function: bound d_]","noDelay":true,"servername":"api.github.com","secureEndpoint":true,"_vscodeAdditionalCaCerts":"[44 certs]","socket":"[object Object]"}]
2025-01-16 17:06:26.176 [debug] ProxyResolver#resolveProxy env http://ProxyIp:ProxyPort/https://global.rel.tunnels.api.visualstudio.com/tunnels?includePorts=true&labels=vscode-server-launcher&allLabels=true&global=true&api-version=2023-09-27-preview PROXY ProxyIp:ProxyPort 
2025-01-16 17:06:26.177 [trace] ProxyResolver#net.connect [{"lookupProxyAuthorization":"[Function: bound d_]","host":"ProxyIp","port":ProxyPort}]
2025-01-16 17:06:26.477 [trace] [golang.go] INVOKE provider 's=>s.provideCodeLenses(E.revive(r),i)'
2025-01-16 17:06:26.477 [trace] [golang.go] provider DONE after 1ms
2025-01-16 17:06:26.478 [trace] [golang.go] INVOKE provider 's=>s.provideCodeLenses(E.revive(r),i)'
2025-01-16 17:06:26.478 [trace] [vscode.merge-conflict] INVOKE provider 's=>s.provideCodeLenses(E.revive(r),i)'
2025-01-16 17:06:26.480 [trace] ExtHostCommands#executeCommand setContext
2025-01-16 17:06:26.480 [trace] ExtHostCommands#executeCommand _setContext
2025-01-16 17:06:26.480 [trace] [vscode.merge-conflict] provider DONE after 1ms
2025-01-16 17:06:26.481 [trace] [golang.go] provider DONE after 3ms
2025-01-16 17:06:28.196 [debug] ProxyResolver#resolveProxy env https://mobile.events.data.microsoft.com/OneCollector/1.0?cors=true&content-type=application/x-json-stream PROXY ProxyIp:ProxyPort 
2025-01-16 17:06:28.196 [trace] ProxyResolver#lookupProxyAuthorization callback proxyURL:http://ProxyIp:ProxyPort/ proxyAuthenticate:undefined proxyAuthenticateCache:undefined
2025-01-16 17:06:28.196 [trace] ProxyResolver#net.connect [{"ALPNProtocols":"http/1.1","lookupProxyAuthorization":"[Function: bound d_]","host":"ProxyIp","port":ProxyPort}]
2025-01-16 17:06:28.303 [trace] ProxyResolver#tls.connect [{"protocol":"https:","hostname":"mobile.events.d[32 chars]","method":"POST","headers":"[object Object]","agent":"[object Object]","_defaultAgent":"[object Object]","lookupProxyAuthorization":"[Function: bound d_]","noDelay":true,"servername":"mobile.events.d[32 chars]","secureEndpoint":true,"_vscodeAdditionalCaCerts":"[44 certs]","socket":"[object Object]"}]

[antoinetran]

The error trace is never the same, today I got

2025-01-16 23:23:09.794 [error] Error: Failed to establish a socket connection to proxies: ["PROXY ProxyIp:ProxyPort"]
	at _PacProxyAgent.<anonymous> (c:\Users\username\Custom\app\vscode\Microsoft VS Code\resources\app\node_modules\@vscode\proxy-agent\out\agent.js:132:19)
	at Generator.throw (<anonymous>)
	at rejected (c:\Users\username\Custom\app\vscode\Microsoft VS Code\resources\app\node_modules\@vscode\proxy-agent\out\agent.js:6:65)
	at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
2025-01-16 23:23:09.794 [error] Error: Failed to establish a socket connection to proxies: ["PROXY ProxyIp:ProxyPort"]
	at _PacProxyAgent.<anonymous> (c:\Users\username\Custom\app\vscode\Microsoft VS Code\resources\app\node_modules\@vscode\proxy-agent\out\agent.js:132:19)
	at Generator.throw (<anonymous>)
	at rejected (c:\Users\username\Custom\app\vscode\Microsoft VS Code\resources\app\node_modules\@vscode\proxy-agent\out\agent.js:6:65)
	at process.processTicksAndRejections (node:internal/process/task_queues:95:5