Thanks Josh, I was able to save after adding the root element with the namespace declaration.

I am now wondering if the URL can be a child of the current container. For example, the datasets live in the parent study folder and the wiki pages live in a child container called eCRFs. This is because we want different permissions on being able to edit/insert into datasets and the ability to delete/edit wiki pages. We have had incidences where a clinical personnel has been known to delete them when they are in the same container as the datasets.

Would it be possible to have the URL be:

controller/containerPath/action -> wiki/eCRFs/page.view?name= . . .

Thanks for the quick responses!