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Description
We're seeing this exception when the extension tries to download a new version of the Coder CLI in Cursor.
TypeError: Converting circular structure to JSON --> starting at object with constructor 'TLSSocket' | property 'parser' -> object with constructor 'HTTPParser'It seems like this only affects older versions of VSCode, as I can't reproduce this in VSCode 1.104.2. The bug was introduced in extension version 1.11.0. The download works when downgrading the extension to version 1.10.1.
The output logs preceding this:
2025-10-02 14:14:18.402 [info] Downloading since existing binary does not match the server version2025-10-02 14:14:18.403 [info] Removed coder-darwin-arm64.temp-bs1fi2025-10-02 14:14:18.403 [info] Downloading binary from /bin/coder-darwin-arm642025-10-02 14:14:18.437 [info] Using ETag 93ba9ec75313948cc85baadc9914917c70e4350e2025-10-02 14:14:18.862 [warning] Converting circular structure to JSON --> starting at object with constructor 'TLSSocket' | property 'parser' -> object with constructor 'HTTPParser' --- property 'socket' closes the circleThe call stack looks like this, when I run in debug mode:
Full stack trace
formatContentLength (/Users/davidv/work/vscode-coder/src/logging/formatters.ts:40)logResponse (/Users/davidv/work/vscode-coder/src/logging/httpLogger.ts:68)<anonymous> (/Users/davidv/work/vscode-coder/src/api/coderApi.ts:232)process.processTicksAndRejections (internal/process/task_queues:95)Promise.then (Unknown Source:0)_request (/Users/davidv/work/vscode-coder/node_modules/axios/dist/node/axios.cjs:4599)request (/Users/davidv/work/vscode-coder/node_modules/axios/dist/node/axios.cjs:4478)Axios.<computed> (/Users/davidv/work/vscode-coder/node_modules/axios/dist/node/axios.cjs:4647)wrap (/Users/davidv/work/vscode-coder/node_modules/axios/dist/node/axios.cjs:31)download (/Users/davidv/work/vscode-coder/src/core/cliManager.ts:253)fetchBinary (/Users/davidv/work/vscode-coder/src/core/cliManager.ts:133)await (Unknown Source:0)processTicksAndRejections (internal/process/task_queues:95)await (Unknown Source:0)processTicksAndRejections (internal/process/task_queues:95)await (Unknown Source:0)processTicksAndRejections (internal/process/task_queues:95)await (Unknown Source:0)setup (/Users/davidv/work/vscode-coder/src/remote/remote.ts:301)await (Unknown Source:0)| constestimated=Buffer.byteLength(JSON.stringify(data),"utf8"); |
| constlen=formatContentLength(response.headers,response.data); |
vscode-coder/src/api/coderApi.ts
Line 232 in67e85e6
| logResponse(logger,response,getLogLevel(configProvider())); |
vscode-coder/src/core/cliManager.ts
Line 253 in67e85e6
| constresp=awaitclient.get(source,{ |
vscode-coder/src/core/cliManager.ts
Line 133 in67e85e6
| conststatus=awaitthis.download(client,binSource,writeStream,{ |
IDE version information
Cursor Version: 1.7.28 (Universal)
VSCode Version: 1.99.3
Commit: adb0f9e3e4f184bba7f3fa6dbfd72ad0ebb8cfd0
Date: 2025-10-01T02:45:21.769Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.6.0