close the connection after sending error to an upgrade request
close the connection after sending error to an upgrade request

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