Citrix Workspace app for HTML5
the Registry Editor can be solved. Use Registry Editor at your own risk. Be sure to back up the
registry before you edit it.
Note:
If you’re using SecureICA to encrypt communications between users’devices and your Citrix Vir‑
tual Apps and Desktops and Citrix DaaS or Citrix Virtual Apps servers, Citrix Workspace app for
HTML5 supports Basic encryption only. If you use other encryption levels, sessions don’t start.
Citrix Provisioning Services
To deploy provisioned (non‑persistent) machines using Citrix Provisioning Services, create the ma‑
chine catalog and delivery group on which you want to enable Citrix Workspace app for HTML5 con‑
nections. Verify that the configured WebSocket policies apply to your machine catalog.
Restartthe machine toapply the WebSocket policies. For Citrix ProvisioningServices‑based machines
that are configured to use persistent write cache files and machines deployed using MCS (that have
separate identity disks), the policies are persisted when the machines restart. However, for Citrix Pro‑
visioning Services‑based machine catalogs that use temporary write cache files, these policies must
be applied to the vDisk. Otherwise, the policies aren’t implemented successfully on target devices.
Complete the following steps to ensure that the policies are correctly applied to the vDisk.
1. Using the Citrix Provisioning Console, shut down a target device that is part of the machine
catalog and delivery group. Change the access type of the target device from Production to
Maintenance.
For details, see Target Devices. You must use a target device that is a part of the machine catalog
and delivery group. Otherwise, the policies aren’t applied.
2. Create a version of your vDisk and set the Access to Maintenance. For details, see Manually
updating a vDisk image.
3. Start the maintenance target device, selecting the maintenance vDisk version from the boot
menu. Verify that the following keys are added to the registry.
a) HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Citrix\ICAPolicies\AcceptWebSocketsConnections
b) HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Citrix\WebSocketsPort
c) HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Citrix\WSTrustedOriginServerList
4. Shut down the target device, change the target device access type back to Production, and pro‑
mote the new vDisk version to production. Then, start the target device and restart any other
target devices currently running from the existing vDisk.
If you don’t use vDisk versioning, you can apply the policies to your base vDisk image. You can apply
the policy by shutting down all the target devices that use the vDisk. Place the vDisk in Private Image
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