// is not available.
	ErrNotSupported = &ProtocolError{"feature not supported"}

	// Deprecated: ErrUnexpectedTrailer is no longer returned by
	// anything in the net/http package. Callers should not
	// compare errors against this variable.
	ErrUnexpectedTrailer = &ProtocolError{"trailer header without chunked transfer encoding"}

	// ErrMissingBoundary is returned by Request.MultipartReader when the

		{"ErrNotMultipart", Var, 0},
		{"ErrNotSupported", Var, 0},
		{"ErrSchemeMismatch", Var, 21},
		{"ErrServerClosed", Var, 8},
		{"ErrShortBody", Var, 0},
		{"ErrSkipAltProtocol", Var, 6},
		{"ErrUnexpectedTrailer", Var, 0},
		{"ErrUseLastResponse", Var, 7},
		{"ErrWriteAfterFlush", Var, 0},
		{"Error", Func, 0},
		{"FS", Func, 16},
		{"File", Type, 0},
		{"FileServer", Func, 0},

pkg net/http, type Transport struct, DialTLS //deprecated
pkg net/http, var ErrHeaderTooLong //deprecated
pkg net/http, var ErrMissingContentLength //deprecated
pkg net/http, var ErrShortBody //deprecated
pkg net/http, var ErrUnexpectedTrailer //deprecated
pkg net/http, var ErrWriteAfterFlush //deprecated
pkg net/http/httptest, type ResponseRecorder struct, HeaderMap //deprecated
pkg net/http/httputil, func NewClientConn //deprecated

pkg net/http, var ErrNoLocation error
pkg net/http, var ErrNotMultipart *ProtocolError
pkg net/http, var ErrNotSupported *ProtocolError
pkg net/http, var ErrShortBody *ProtocolError
pkg net/http, var ErrUnexpectedTrailer *ProtocolError
pkg net/http, var ErrWriteAfterFlush error
pkg net/http/cgi, func Request() (*http.Request, error)
pkg net/http/cgi, func RequestFromMap(map[string]string) (*http.Request, error)