Option-n also inserts a tilde

[simonmichael]

I think this is the right place to ask:

In VS Code's terminal pane, on a mac, when I type Option n (Alt n),

• the first press inserts :~
• subsequent presses insert ^[n

And when I type Option p, the first press inserts :, others insert ^[p.

And sometimes when you alternate it'll insert a π.

This is a pain when running a TUI emacs. There, M-p tends to work normally, but M-n always inserts a ~.

I've been seeing this for years but I haven't found any mention of it on the net. Does anyone have an idea of the cause or how to find it ?

Thank you for xterm.js, devs.