Bug Report

When tsserver.js is started as a child process with --useNodeIpc command line switch included and the parent process is killed (with SIGKILL for example), the child process does not shutdown.

I have only tested this on recent 4.8.4 typescript version but I'm assuming that this issue exists since the --useNodeIpc flag was introduced in 4.6.0.

To reproduce this "in the wild" one can start VSCode, open some TS project to trigger typescript service initialization and then kill the parent of the tsserver process which is an extension process:

The tsserver process(es) keep running in the background.

🔎 Search Terms

tsserver ipc

🕗 Version & Regression Information

• This changed between versions 4.5.5 and 4.6.0

🙁 Actual behavior

The child tsserver process exits after parent process is killed.

🙂 Expected behavior

The child tsserver process keeps running in the background.