feature?: pass arguments to loaded HTML

[jlangr]

Example of use: Bumper slides in a presentation. Each one looks exactly the same except for perhaps title text. Something like:

<section data-external="include/bumper.html" text="some bumper title" />

bumper.html:
<p>${text}</p> <img src="images/lss.png" style="width:100%" />

I'm new to reveal.js, and not terribly familiar with HTML & templating, so I'm not sure if there's a better approach to what I seek. Thanks for any thoughts.