url-http-codes
    
    url-http-codes is a variable defined in `
url-http.el'.
Its value is shown 
below.
-   This variable may be risky if used as a file-local variable.
Documentation:
The HTTP return codes and their text.
Value: 
((100 continue "Continue with request")
 (101 switching-protocols "Switching protocols")
 (102 processing "Processing (Added by DAV)")
 (200 OK "OK")
 (201 created "Created")
 (202 accepted "Accepted")
 (203 non-authoritative "Non-authoritative information")
 (204 no-content "No content")
 (205 reset-content "Reset content")
 (206 partial-content "Partial content")
 (207 multi-status "Multi-status (Added by DAV)")
 (300 multiple-choices "Multiple choices")
 (301 moved-permanently "Moved permanently")
 (302 found "Found")
 (303 see-other "See other")
 (304 not-modified "Not modified")
 (305 use-proxy "Use proxy")
 (307 temporary-redirect "Temporary redirect")
 (400 bad-request "Bad Request")
 (401 unauthorized "Unauthorized")
 (402 payment-required "Payment required")
 (403 forbidden "Forbidden")
 (404 not-found "Not found")
 (405 method-not-allowed "Method not allowed")
 (406 not-acceptable "Not acceptable")
 (407 proxy-authentication-required "Proxy authentication required")
 (408 request-timeout "Request time-out")
 (409 conflict "Conflict")
 (410 gone "Gone")
 (411 length-required "Length required")
 (412 precondition-failed "Precondition failed")
 (413 request-entity-too-large "Request entity too large")
 (414 request-uri-too-large "Request-URI too large")
 (415 unsupported-media-type "Unsupported media type")
 (416 requested-range-not-satisfiable "Requested range not satisfiable")
 (417 expectation-failed "Expectation failed")
 (422 unprocessable-entity "Unprocessable Entity (Added by DAV)")
 (423 locked "Locked")
 (424 failed-Dependency "Failed Dependency")
 (500 internal-server-error "Internal server error")
 (501 not-implemented "Not implemented")
 (502 bad-gateway "Bad gateway")
 (503 service-unavailable "Service unavailable")
 (504 gateway-timeout "Gateway time-out")
 (505 http-version-not-supported "HTTP version not supported")
 (507 insufficient-storage "Insufficient storage"))