{"If-Modified-Since", HDR_IF_MODIFIED_SINCE, ftDate_1123},
{"If-None-Match", HDR_IF_NONE_MATCH, ftStr}, /* for now */
{"If-Range", HDR_IF_RANGE, ftDate_1123_or_ETag},
+ {"If-Unmodified-Since", HDR_IF_UNMODIFIED_SINCE, ftDate_1123},
{"Keep-Alive", HDR_KEEP_ALIVE, ftStr},
{"Key", HDR_KEY, ftStr},
{"Last-Modified", HDR_LAST_MODIFIED, ftDate_1123},
HDR_IF_MODIFIED_SINCE, /**< RFC 2608, 2616 */
HDR_IF_NONE_MATCH, /**< RFC 2608, 2616 */
HDR_IF_RANGE, /**< RFC 2608, 2616 */
- /*HDR_IF_UNMODIFIED_SINCE,*/ /**< RFC 2608, 2616 */
+ HDR_IF_UNMODIFIED_SINCE, /**< RFC 7232 */
HDR_KEEP_ALIVE, /**< obsolete HTTP/1.0 header we may need to erase */
HDR_KEY, /**< experimental RFC Draft draft-fielding-http-key-02 */
HDR_LAST_MODIFIED, /**< RFC 2608, 2616 */