No diagnostic with neoclide/coc

[Clonkk]

neoclide/coc doesn't display any diagnostic when used with Nim (works with others language). I've setup a json settings as such :

  "languageserver": {
    "nim": {
      "command": "nimlsp",
      "filetypes": ["nim"],
      "trace.server": "verbose"
    }
  }

It seems related to this issue : neoclide/coc.nvim#1766

[PMunch]

This has been a known issue for a while. Basically it is caused by CoC sending fields that are not defined in the LSP specification, and NimLSP being very strict about following the spec. This was attempted fixed earlier but caused a different issue. But now I have deployed a better fix that should make everything work.

But shame on CoC and other clients who break the spec!