H5P Javascript broken with bundler set to 15, works at 5

Looks like a minification issue. Can I get a zip of the page with core and advagg js disabled?

This is where the JS is having issues

a.ABSOLUTE_PATT=/^(?:\w+:)?\/{2}/i,a.RELATIVE_PATT=/^[./]*?\
ction a(a){

It's a issue with the minifier in use.
Using https://github.com/CreateJS/SoundJS/blob/master/lib/soundjs-0.6.2.combin... instead of https://github.com/CreateJS/SoundJS/blob/master/lib/soundjs-0.6.2.min.js might help.

If not the regex needs fixing in the js file.

This
a.ABSOLUTE_PATT=/^(?:\w+:)?\/{2}/i,a.RELATIVE_PATT=/^[./]*?\//i,a.EXTENSION_PATT=/\/?[^/]+\.(\w{1,5})$/i
Should be this (escape / with \).
a.ABSOLUTE_PATT=/^(?:\w+:)?\/{2}/i,a.RELATIVE_PATT=/^[.\/]*?\//i,a.EXTENSION_PATT=/\/?[^\/]+\.(\w{1,5})$/i

The minifier sees // as an inline comment and cuts off the rest of the JS file. You can also tell advagg to not compress this file.

Glad to hear you got the bottom of this issue!

Thanks @mikeytown2 for getting to the bottom of this one. You have been mentioned here:
h5p.org/post-hub-releases