remote extension host terminated unexpectedly 3 times within the last 5 minutes.

Reproduce the failure with code-server --verbose while Extensions initializes, then inspect the logged lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js entry around the circular JSON serialization error. Compare behavior with third-party extensions disabled and across the reported workspaces; done means the remote extension host remains running and extensions initialize without the repeated termination.

Is there an existing issue for this?

• I have searched the existing issues

OS/Web Information

• Web Browser: Tried both Brave and Firefox
• Local OS: Windows 11, Fedora
• Remote OS: Ubuntu 24.04
• Remote Architecture: amd64
• code-server --version: 4.130.0 197ef3e8da8ee99ed6ca8f1a630157527e6d448f with Code 1.130.0

Steps to Reproduce

1. Open code-server in Brave/Firefox
2. Let Extensions try to initialize
3. Experience failure

Expected

Extensions should initialize without issue.

Actual

The failure happens all on its own.

Logs

`code-server --verbose` output

[TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Object'
    --- property 'issuerCertificate' closes the circle
        at JSON.stringify (<anonymous>)
        at L2 (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:435:106513)
        at Sr.serializeRequestArguments (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:435:116364)
        at i._remoteCall (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:435:112184)
        at r.<computed>.s.charCodeAt.r.<computed> (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:435:108829)
        at file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:541:157
        at file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:411:129
        at Array.forEach (<anonymous>)
        at N_.emit (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:411:117)
        at N_.onUnexpectedError (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:411:385)
        at je (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:411:694)
        at process.<anonymous> (file:///usr/lib/code-server/lib/vscode/out/vs/workbench/api/node/extensionHostProcess.js:852:11163)
        at process.emit (node:events:509:28)
        at process._fatalException (node:internal/process/execution:159:25)]

Node.js v24.18.0

[16:06:08] [127.0.0.1][b75cf46d][ExtensionHostConnection] <6324> Extension Host Process exited with code: 7, signal: null.
[16:06:08] ServerLifetime: consumer 'ExtensionHost:b75cf46d' inactive (total: 0)
[16:06:08] [127.0.0.1][b75cf46d][ExtensionHostConnection] - startParams language: en
[16:06:08] [127.0.0.1][b75cf46d][ExtensionHostConnection] - startParams env: {"VSCODE_PROXY_URI":"http://localhost:8880/proxy/{{port}}/"}
[16:06:08] [127.0.0.1][b75cf46d][ExtensionHostConnection] Unknown reconnection token (seen before).
[16:06:08] [File Watcher (node.js)] Request to stop watching: /srv/development/lynn.heavyelement.cloud/.git (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".hg/store/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>),/srv/development/lynn.heavyelement.cloud/.git/refs/remotes/origin/main (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".hg/store/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>),/srv/development/cobalt-core/.git (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/cobalt-core","pattern":".git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":".hg/store/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>),/srv/development/cobalt-core/.git/refs/remotes/origin/datamodel (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/cobalt-core","pattern":".git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":".hg/store/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>)
[16:06:08] [File Watcher (node.js)] stopping file watcher (/srv/development/lynn.heavyelement.cloud/.git (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".hg/store/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>))
[16:06:08] [File Watcher (node.js)] stopping file watcher (/srv/development/lynn.heavyelement.cloud/.git/refs/remotes/origin/main (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":".hg/store/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/lynn.heavyelement.cloud","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>))
[16:06:08] [File Watcher (node.js)] stopping file watcher (/srv/development/cobalt-core/.git (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/cobalt-core","pattern":".git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":".hg/store/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>))
[16:06:08] [File Watcher (node.js)] stopping file watcher (/srv/development/cobalt-core/.git/refs/remotes/origin/datamodel (excludes: /var/www/.local/share/code-server/extensions/**, includes: [{"base":"/srv/development/cobalt-core","pattern":".git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":".git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":".hg/store/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/objects/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.git/subtree-cache/**/**"},{"base":"/srv/development/cobalt-core","pattern":"*/.hg/store/**/**"}], filter: <none>, correlationId: <none>))

Screenshot/Video

Does this bug reproduce in native VS Code?

I did not test native VS Code

Does this bug reproduce in VS Code web?

I did not test VS Code web

Does this bug reproduce in GitHub Codespaces?

I did not test GitHub Codespaces

Are you accessing code-server over a secure context?

• I am using a secure context.

Notes

I looked up this specific issue and found this but the underlying issue seemed different and their solution didn't work for me.

I had a number of third party extensions installed including Intelephense. In diagnosing this issue I disabled all third party extensions and the problem still exists.

I've also tried with other workspaces and project directories.