I always develop my websites with root relative URLs in order to make it easier to move to the client's site.
By the way, over 93% of the top 100 websites (according to Alexa) use root relative urls, including WordPress.org, WordPress.com, Facebook.com, Twitter.com, Google.com, Wikipedia.org, Yahoo.com, Youtube.com, Amazon.com, Fickr.com etc ~ not a lot of people know that. Even less care!
Anyway, where the base address is not specified, the reader will use the URL it used to access the document to resolve any relative URLs, so I need a fully qualified URL for my Linkbox Inserter, but I get this of course...
<a href="/hello-world/">Hello world!</a>
How can I configure the Linkbox Inserter module to give me the full URL?