We need to use the full page width for content, so are using the full-width macro in the header to get rid of the left and right columns, as suggested in https://answers.atlassian.com/questions/271558/using-full-width-macro-in-master-page-layout.
To my dismay, I just discovered that though the effect works well for me, for users who are not admins or are not logged in, it doesn't work at all -- the page renders with the left column.
Help! If this can't be fixed we will have to give up on Zen. (We do want to move to your newer plugin, but we need to upgrade Confluence first, and I'm not sure that will happen soon enough.)
