Super expression must either be null or a function, not undefined

[skykep]

When trying to load the RTMP plugin in Chrome 84 (64-bit), we get this error.
This is strictly calling the plugin in the userscript. (not trying to use it, yet)

[GiovanniMounir]

Getting the same error here when trying to use rtmp.min.js with the latest clappr.min.js from https://github.com/clappr/clappr/blob/dev/dist/clappr.min.js

Uncaught TypeError: Super expression must either be null or a function, not undefined

Edit: I was able to get it working with this version of Clappr:

https://raw.githubusercontent.com/clappr/clappr/fdedf8152e056cb719b519a99afeae1df6f7ab47/dist/clappr.min.js