"docker stack rm" results in "page not found" about cli HOT 3 CLOSED

Client:
 Version:      17.06.0-ce-rc4
 API version:  1.29 (downgraded from 1.30)
 Go version:   go1.8.3
 Git commit:   29fcd5d
 Built:        Thu Jun 15 17:29:01 2017
 OS/Arch:      darwin/amd64

Server:
 Version:      17.05.0-ce
 API version:  1.29 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   89658be
 Built:        Thu May  4 22:06:06 2017
 OS/Arch:      linux/amd64
 Experimental: false

Containers: 2
 Running: 2
 Paused: 0
 Stopped: 0
Images: 1
Server Version: 17.05.0-ce
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 16
 Dirperm1 Supported: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log:
Swarm: active
 NodeID: ixg2co2wxx7wawtmqck6cqbvv
 Is Manager: true
 ClusterID: xecijd5atolahozwr6ei1pjgq
 Managers: 1
 Nodes: 1
 Orchestration:
  Task History Retention Limit: 5
 Raft:
  Snapshot Interval: 10000
  Number of Old Snapshots to Retain: 0
  Heartbeat Tick: 1
  Election Tick: 3
 Dispatcher:
  Heartbeat Period: 5 seconds
 CA Configuration:
  Expiry Duration: 3 months
  Force Rotate: 0
 Root Rotation In Progress: false
 Node Address: 172.27.53.236
 Manager Addresses:
  172.27.53.236:2377
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 9048e5e50717ea4497b757314bad98ea3763c145
runc version: 9c2d8d184e5da67c95d601382adf14862e4f2228
init version: 949e6fa
Security Options:
 apparmor
Kernel Version: 3.13.0-24-generic
Operating System: Ubuntu 14.04 LTS
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 1.955GiB
Name: web1
ID: GSOV:B7QP:5HFA:HWRI:A6DT:NBWW:ZN54:BOLB:JP3A:UEHC:OAYV:6RDI
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false

WARNING: No swap limit support
WARNING: No kernel memory limit support