IE11 breaking when silentbox esm packaged into app.js in Nuxt

[maskott]

I am having trouble with what seems to be a javascript error originating in silentbox.

I am using silentbox in a Nuxt based project and it works great, except in Internet Explorer 11. When I test in IE11, I see a javascript error in the console like so:

When I inspect the referenced area in app.js I see:

I was not sure if this was because of my Nuxt setup, so I made a very simple example to see if I still have the error. My code is located here https://github.com/maskott/silentbox-test and you can see the example live at https://truthful-dad.surge.sh/ (working fine in Chrome, but breaking in IE11).

Thank you for any light you may be able to shed on this issue!

[silencesys]

Hello, SilentBox is not meant to be used in IE11 as the official support ended in January 2016, sorry for that.