Neat demo, though it doesn't work with the default url due to a https vs http conflict in firefox. From the js console I see "Blocked loading mixed active conte

Neat demo, though it doesn't work with the default url due to a https vs http conflict in firefox. From the js console I see "Blocked loading mixed active content" and changing the url to some content served over https (e.g. the project's package.json) seems to work fine.