`code serve-web` TypeScript SIGTERM causing Partial mode

[milomg]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.101.0 (commit dfaf441)
• OS Version: Mac Sequoia 15.5

When running code serve-web, the latest version seems to have broken TypeScript so that errors are no longer reported. I tried checking the TypeScript log and got the following (the initial launch seems to hang, but subsequent launches through Restart TS Server trigger SIGTERM).

I also tried enabling the TS Server Log but nothing seemed to be reported. Locally TypeScript works just fine in any repo.

This seems like it might be related to #251541 (although possibly different because of behavior with Codespaces networking)

Steps to Reproduce:

1. Clone and initialize a TypeScript project, for example https://github.com/angular/angular
2. code serve-web
3. Open a .ts file in the web ui, for example graph.ts
4. TypeScript displays Partial mode and doesn't show errors or detect the tsconfig.json

[jeanp413]

This is the same as #251541, fix is here #251688

[deepak1556]

Merging to #251541, please follow that issue for updates. Thanks!