webserver: keep slightly more of request body in mem
webserver: keep slightly more of request body in mem

Former-commit-id: 404d167db35315c25655461c085f43f3a1d77b9e [formerly 89508ccc2de565f22cb4d70146e81e7f856c5f60]
Former-commit-id: 0eeff3b274b22d2d52d8f4610cd840b836e53c2c
torhve/ivar2,haste/ivar2,torhve/ivar2,torhve/ivar2