Looks like commenting out lines 38 to 51 in the recipe is what's needed. This kills preprocess_html.
The recipe has had to be changed to use, for example,
http://www.independent.co.uk/news/uk/rss rather than
http://www.independent.co.uk/news/uk/?service=rss (Kovid already fixed this last week, I see. Thanks, as always.)
I'm checking to see if any of the RSS feeds have been renamed and therefore lost and will report back if I make any further alterations to my copy of the recipe.