How to expose the URL alias of a taxonomy term in a View?

Question

I have a View showing Taxonomy Terms as JSON, and want to expose the URL aliases of those terms:

{
  "terms" : [
    {
      "term" : {
        "name" : "Media centre",
        "term_id" : "4547",
      }
    },
    ...

Some of the terms have URL aliases manually set, while others are automatically generated.

How can I expose the URL alias of each term as a field?

{
  "terms" : [
    {
      "term" : {
        "name" : "Media centre",
        "term_id" : "4547",
        "term_url_alias" : "/about/news/media-centre"   <<<<<
      }
    },
    ...

No field relating to Path, URL or Alias appears under fields or relationships. My issue sounds similar to How to use url alias in views for taxonomy terms? but the answer didn't fix my problem.