tsfg

How sad, nobody provided any information: the API is described here [LanguageTool Plus API](https://languagetoolplus.com/http-api/#!/default/post_check). Hence, the URL and the response are very similar to the regular version. Here one example...

Maybe it is specific to a certain keyboard layout or driver. @ondrejtichacek: I expect you use Czech (qwertz) as well?