[devOps] Babel-polyfill conflict

Hi! Fantastic creation you are doing!! Amazing stuff.

I regard this as a bug.

Description I am trying to include it into a NodeJS webapp that is using babel-polyfill. After loading it, the webapp complaints about that there are too many instances of babel-polyfill in my app.

See below output from browser console:

VM75 ml5.min.js:73 Uncaught Error: only one instance of babel-polyfill is allowed at Object. (VM69 ml5.min.js:73) at Object. (VM69 ml5.min.js:73) at n (VM69 ml5.min.js:1) at Object. (VM69 ml5.min.js:73) at n (VM69 ml5.min.js:1) at VM69 ml5.min.js:1 at VM69 ml5.min.js:1 at VM69 ml5.min.js:1 at VM69 ml5.min.js:1

index.js:10 Uncaught Error: only one instance of babel-polyfill is allowed at Object. (index.js:10) at Object. (index.js:27) at n (bootstrap:19) at Object. (index.js:27) at n (bootstrap:19) at bootstrap:68 at universalModuleDefinition:11 at universalModuleDefinition:9 at universalModuleDefinition:1

• Web browser and version: Chrome Version 77.0.3865.90
• Operating System: MacOSX
• ml5 version you're using: ml5@0.3.0 & ml5@0.3.1

Helpful information General info from the Babel-people can be found here: https://babeljs.io/docs/en/6.26.3/babel-polyfill I found a comment on Babel github page https://github.com/babel/babel/issues/4019 where they essentially recommend not to use polyfill in libraries in general. Please read if you want to know more. I have no knowledge about Babel really. Hope this is something others also have noticed now that this library is getting some well deserved attention!

All the best /Johan Wastring