Markup Mode not working

[Jakobud]

Look at this example:

http://jsfiddle.net/zmU9n/

The markup mode is copy/pasted from responsejs.com. The resulting markup does not show up at all. It has a css height of 0px. Even after manually changing the css height to 100px, there is still no markup showing up.

Am I doing something wrong? Also note: The responsejs breakpoints are added to the body already under the "Fiddle Options" button.

[ryanve]

That fiddle reproduces #25 and not markup mode. Let's handle this in #25 b/c I think the underlying issue is the same.