Desktop Viewer toolbar does not show up in session using Web Interface

The black Desktop Viewer toolbar does not show up in the XenApp or XenDesktop ICA session of the user...

Citrix Desktop Viewer Toolbar not Available in XenDesktop when using Receiver StoreFront

The Desktop Viewer Toolbar is not available when launching XenDesktop virtual desktops using the Receiver 3.1 and StoreFront Services...