How to play nice with Tramp-Mode

When I save a JS file edited via Tramp, this error pops up in a new buffer:

```
prettier errors:
[warn] Ignored unknown option: --ignore-path /sshx
[error] Invalid configuration file: ENOENT: no such file or directory, scandir '/sshx:<serverName>/path/to/file
```

It would be great either to disable Prettier for files in Tramp mode, or to make it work.