Provide es5 compatible luigi about luigi HOT 8 CLOSED

@y-kkamil :

there's no need to change anything in core - apparently babel compiles code to es5 implicitly

from luigi.

@y-kkamil :

I have created UMD for client lib, as defined in https://github.com/umdjs/umd
which means that client will be available with node's require, regular import statement and also as a global object

from luigi.

#33

from luigi.

• added babel-polyfill to support es6+ features in core.
• added polyfills.js file to enable support for some DOM functionalities we make use of in core (.prepend() method, onhashchange newURL/oldURL properties) that IE 11 lacks. (they are not covered by babel-polyfill)
• not a perfect solution, though - every time one makes use of something that is not supported, he has to add the polyfill to polyfill.js

luigi-sample-angular related:

• also, luigi-sample-angular won't work out-of-box. IE-relevant lines of code have to be uncommented in polyfills.ts file before running it. should we document that somehow?
• even with all these polyfills in place app still crashes somehow with:
  Uncaught (in promise): TypeError: Unable to get property 'instance' of undefined or null reference
  seems to be an angular related problem

from luigi.

this needs to be investigated further. how to support ie 11 with as less pain as possible ;)

• how to polyfill missing DOM features?
• is there a library, that can do it for us, instead of manually adding polyfills?
• https://www.npmjs.com/package/fix-ie might be a solution
• how to load these polyfills 'on-demand', only for IE, to avoid excess data transfer when using other browsers? (https://stackoverflow.com/questions/29987969/how-to-load-a-script-only-in-ie <-- this might be of some help), maybe there are some webpack plugins?
• maybe https://polyfill.io would be a solution?
• would then babel-polyfill be needed? (it already surged our bundle size)

from luigi.

there's a closed PR, that might be worth checking with a basic solution:
#98

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This issue has been automatically marked as stale due to the lack of recent activity. It will soon be closed if no further activity occurs. Thank you for your contributions.

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This issue has been automatically closed due to the lack of recent activity.

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