Can't use certain keyboard input in the playground

[Zstorm999]

Operating system: MacOS Sequoia 15.0.1 (the issue was also present in earlier versions)
Browser: Firefox, latest version

As the title says, I have a problem with some keyboard inputs not interpreted correctly in the playground. I have a input method mapping OPT+SPACE/ALT+SPACE to underscore (0x95, _), which works perfectly fine on all applications and websites except for the rust playground.

For some reason, the input is simply ignored and no character is displayed, and I have to copy and paste manually each time I want to use an underscore (which is pretty often when snake-case is the convention).

Has anybody run into this problem before ? Is there some customization that I’m not aware of to make this work ?

[shepmaster]

Which editor are you using?

If Ace, can you try the same thing on https://ace.c9.io/build/kitchen-sink.html

If Monaco, can you try the same thing on https://microsoft.github.io/monaco-editor/playground.html

[Zstorm999]

I am using Ace. I tried the first editor, and the same shortcut triggers the completion list.

I also tried it on the Monaco editor, and it works as expected both in the playground and the link you gave me, so the problem is definitely coming from Ace