Server/bkr/server/templates/recipe_action.kid contains <html> tags which shouldn't be there. If you view the source for any job/recipe results page, you will see <td>s containing <html>s.
It's not just here that this happens, it's all through our code. I'll go through and clean them all up.
http://gerrit.beaker-project.org/#/c/1252/
*** Bug 723110 has been marked as a duplicate of this bug. ***
Beaker 0.9.2 has been released.