vsc.attach() fails to attach with non-ascii characters in path

[adamaltmejd]

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When VsCode is opened in a folder with non-ascii characters .vsc.attach() does nothing. Tried both with the "Create R terminal" command and opening a normal vscode terminal window and loading vscode-R.

Problem seems to be on the VSCode side of the extension, because when opening a terminal, cd-ing to the folder with the non-ascii characters (tested with åäö on MacOS 15) the session is attached as it is supposed to. But when i open the folder with a non-ascii path in VSCode and try to start an R session it fails to attach, even if I start R from a ascii-only path inside that VSCode window.

Tried setting useWebServer to true and multiServer to false but did not matter.