The "Wipe Out Workspace" link does not show up through the "view" URL.
Example:
From http://hudson.mywebsite.com/job/JOB1/ws/ in the navigation menu on the
left, under "Workspace", there's a "Wipe Out Workspace" link.

From http://hudson.mywebsite.com/view/Continuous%20Integration/job/JOB1/ws/, the
"Wipe out workspace" link does not show up.

I think we should expect the see this link in both cases.