Chart Tracked - GET /charts/:chartHash

Used to check if the server will accept a score for a given chart in advance of submitting it.

Expected Request

Request data is entirely in the URL; viz. the value of :chartHash should be the chartHash you are interested in.

Expected Response

If the server would refuse a score for this chart (e.g. it is blacklisted, or the server does not know it and does not accept unknown charts), respond with statusCode 42.

Otherwise, respond with statusCode 20. The difference between a tracked chart and an unknown chart on a server that accepts unknown charts may be distinguished in the response description.