Does Gitlab-MR support Gitlab-CC hosts with relative addresses?

I'm running Gitlab-CC through Nginx.

I have set up a relative address and the host for Gitlab-CC is assigned to "https://mydomain.com/GitLab".

So, the settings.json should look like this.

"gitlab-mr.accessTokens": {
    "https://mydomain.com/GitLab": "Personal Access Tokens"
}

However, I get the following error message back on the VS code

Gitlab MR: gitlab-mr.accessTokens does not contain an entry for mydomain.com(e.g. gitlab-mr.accessTokens["https://mydomain.com"]).

What should I do? Please help me.