Convert relative URLs in feed contents into absolute ones

[dgutov]

When feed item body has images/videos with relative URLs, currently they cause requests to the server where the app is hosted, resulting in 404s and sometimes 302s (sinatra/rack-protection#56).

I've seen an opinion that such feeds are not valid, but Google Reader supports that, so I think you should, too. Example: https://www.google.com/reader/view/#stream/feed/http://nakkaya.com/rss-feed

[swanson]

This code is really elegant and works great. Thanks for tackling this - I had given up on being able to do this 👍

I made the spec match the style of the rest of the suite and made a nitpicky renaming of the method. Awesome job!

[dgutov]

No problem, thanks for the cleanup!

I'm a bit surprised you're using # symbols in describe block names here, class method sections are often (usually?) named starting with . to distinguish them from instance methods.

Anyway, looks like I left an extraneous line of code in the new method (URI.parse(url), oops!), please delete that.

[swanson]

Ah - you are right about # vs . - my bad there.

Will delete that for you, no problem!