At the moment it's quite easy to ISE beaker by removing and changing parts of the GET string. Need to tweak parts of the code to deal with this in a more gracious manner.
Some changes for the recipe page http://git.fedorahosted.org/git/?p=beaker.git;a=commit;h=aadef9115eaf10955abca75ee39b2ca4ec3ba765
merged into master, will be in next release.