Only call `h2o_url_parse` if we know the path isn't absolute
Only call `h2o_url_parse` if we know the path isn't absolute

deweerdt/h2o,devnexen/h2o,cwyang/h2o,cwyang/h2o,yannick/h2o,cwyang/h2o,yannick/h2o,h2o/h2o,yannick/h2o,cwyang/h2o,h2o/h2o,devnexen/h2o,h2o/h2o,deweerdt/h2o,deweerdt/h2o,h2o/h2o,cwyang/h2o,devnexen/h2o,yannick/h2o,cwyang/h2o,yannick/h2o,devnexen/h2o,deweerdt/h2o,h2o/h2o,h2o/h2o,yannick/h2o,cwyang/h2o,cwyang/h2o,yannick/h2o,deweerdt/h2o,yannick/h2o,deweerdt/h2o,devnexen/h2o,h2o/h2o,devnexen/h2o,devnexen/h2o,h2o/h2o,yannick/h2o,deweerdt/h2o,deweerdt/h2o,devnexen/h2o,devnexen/h2o,h2o/h2o,deweerdt/h2o