Create JSON feed of MIME types.

jaypan → closed merge request !35

jaypan → changed the visibility of the branch 3.0.x to hidden.

jaypan → changed the visibility of the branch 3.0.x to active.

jaypan → changed the visibility of the branch 3.0.x to active.

Nice! Could use a simple functional test to verify route returns expected http code and the returned json can be successfully decoded.

Hopefully someone else can come along and do that, I do e2e testing (Cypress) on my projects, and have not worked with Drupal's testing suite for over a decade.