api documentation of GeneratorMethods broken?

Sorry if I missed something obvious,

but on my machine the api documentation of GeneratorMethods seem to be
broken.

http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper/JavaScriptGenerator/GeneratorMethods.html

Both in Firefox and in Safari the rendering stops right after
'..bodies, either in a'

Looking at the html source I can see an unescaped: <script> element.

Anyone any hints on how to get rid of that?

mf