Because of https://github.com/islamic-network/api.aladhan.com/commit/3b266fd59ae783416548d559e65bacf9d3b5f257#diff-2ad9e3916c5169b9609a90c496b5106f576b71ab76a6e4e1f4c9c989a3e51950L7. Patched, but please use month and year in the URL's path params as the documentation states, otherwise you get a 302 for each request and make 2 API calls to get an actual response.