4 "402": "Payment required",
7 "405": "Method not allowed",
8 "406": "Not acceptable",
9 "407": "Proxy authentication required",
10 "408": "Request timeout",
13 "411": "Length required",
14 "412": "Precondition failed",
15 "413": "Request entity too large",
16 "414": "Request URI too long",
17 "415": "Unsupported media type",
18 "417": "Expectation failed",
19 "418": "No verification image in session",
20 "419": "Verification code mismatch",
21 "420": "Account already exists"