add_next_index_stringl(&zsupported, "gzip", lenof("gzip"), 1);
add_next_index_stringl(&zsupported, "deflate", lenof("deflate"), 1);
add_next_index_stringl(&zsupported, "gzip", lenof("gzip"), 1);
add_next_index_stringl(&zsupported, "deflate", lenof("deflate"), 1);