Error codes

302Redirect
400Bad Request
401Authorization Required
402Payment Required
403Forbidden
404File Not Found
405Method Not Allowed
406Not Acceptable
407Proxy Authentication Required
408Request Time-out
409Conflict
410Gone
411Length Required
412Precondition Failed
413Request Entity Too Large
414Request-URI Too Large
415Unsupported Media Type
500Internal Server Error
501Method Not Implemented
502Bad Gateway
503Service Temporarily Unavailable
504Gateway Time-out
505HTTP Version Not Supported