Emit HTML non-200 status reports. Such requests are always sent
as UTF-8 documents.
Status can be one of the following:
- authorise(Method)
- Challenge authorization. Method is one of
basic(Realm)digest(Digest)
- authorise(basic,Realm)
- Same as
authorise(basic(Realm)). Deprecated.
- bad_request(ErrorTerm)
- busy
- created(Location)
- forbidden(Url)
- moved(To)
- moved_temporary(To)
- no_content
- not_acceptable(WhyHtml)
- not_found(Path)
- method_not_allowed(Method, Path)
- not_modified
- resource_error(ErrorTerm)
- see_other(To)
- switching_protocols(Goal, Options)
- server_error(ErrorTerm)
- unavailable(WhyHtml)
