When I try to submit my HTML code for Facebook's new Instant Articles, I get the error below. This is the only error I get and it is displayed at the bottom of the pasted code.
URL is Incomplete: The URL used for this media element is missing information. We have automatically filled in information for you. Please check that the URL is now correct and complete.
Any idea how to fix that?
I recently had the same problem. You need the "full" address to (for example) an image.
img src="/path/to/img/" - wont work
img src="http://mydomain.de/path/to/img/" - worked in my example