Ctrl-C doesn't terminate process in tmux inside VSCode terminal

[Mellbourn]

I have the setup that was described by João Moreno (@joaomoreno) in his blog post https://medium.com/@joaomoreno/persistent-terminal-sessions-in-vs-code-8fc469ed6b41

However, it seems to me that Control-C does not work as good as it used to.

It is particularly noticeable when I run nodemon. When I run it in tmux in iTerm, I can exit the run without problem by using Control-C. If I run nodemon inside tmux inside VSCode, I cannot. Instead it just renders ^C in the terminal window.

Strangely, the problem is intermittent. Restarting VSCode sometimes help.

• VSCode Version: 1.21.1 and 1.22.1-insiders b753213
• OS Version: MacOS 10.13.3

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

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• launching the debugger in tmux no longer works (#43683)
• tmux renders with wrong size when there are several terminals (#44325)
• launching the debugger in tmux never works first time (#45025)

[Tyriar]

@joaomoreno @bpasero have you noticed ctrl+c not being responsive?

[bpasero]

@Tyriar no never, works fine.

[joaomoreno]

Same here.

[Tyriar]

@Mellbourn for macOS we just send the shell (tmux) ^C (SIGINT) and let it handle it how it sees fit. Perhaps this is something related to your environment since @bpasero and @joaomoreno both run this setup and see no issues?

[Mellbourn]

@Tyriar strange. Ok, I'll try to investigate further on my own, to figure out why it is happening. Thanks for your time!

[Tyriar]

@Mellbourn let us know if you find out more info.