It should be noted that so far "text/html" is the only content type that has been ignored.

There is an option available in Ketarin 1.8.10 beta 2 (general settings) to allow text/html downloads.

Will be available in 1.8.10 or later.

Command line options will be (1.8.8 b2 or later):

/category:Office

/appname:Ketarin (accepts * wildcard in appname)