I'm using the TinyCloud service within the TinyMCE rich text editor in a react website.

In my TinyMCE I have this working fine. It returns a valid JWT:

 tinydrive_token_provider: '/api/jwtcontroller/' + systemId + '/jwtRequest',

However, in the TinyMCE docs, I read you can also code it like this:

  tinydrive_token_provider: function (success, failure) {
    success({ token: "jwt-token" });
    // failure('Could not create a jwt token')
  },

So I put the call into the success part of the call like this:

 tinydrive_token_provider: function (success, failure) {
    success({ token: '/api/jwtcontroller/' + systemId + '/jwtRequest' });
    // failure('Could not create a jwt token')
  },

But when I do that, I get a generic 401.

Is there something I'm doing wrong?