In experimenting with how we could embed javascript/unsanitized html in tool output we came across the following method. Given that the current default is to disallow such activities, we thought it might be useful to bring it to your attention.

The attached file provides an example, which, when uploaded to a history and viewed produces a popup on the current stable release of galaxy (local install and https://usegalaxy.org).

Cheers,
Tobias Sargeant.