Kovid, That revision worked.
Now just one more item please. Some articles include images inline with the content text that are not being captured in the mobi output. Some days the feed does not have any such articles. Here is an example article in today's feed -
http://thefederalist.com/2018/05/09/...ng-oil-prices/
And here is what the html looks like for one of the images -
Thanks.