Cannot use variables in a link

[jonas-dfns]

I have added in my docs.json a variable that contains a url:

"variables": {
    "supportUrl": "https://support.dfns.co"
  },

Then in my .mdx page:
Feel free to reach out at [{{supportUrl}}]({{supportUrl}}) if you have any question!

But when I use mint dev to test it, the "text" part renders properly but the "url" part just url-encodes the variable, so the link goes to%7B%7BsupportUrl%7D%7D.