id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
16782	Add ES6 compatibility to CKBuilder	Wiktor Walc		"== Steps to reproduce ==

Upload addon with ES6 syntax (e.g. let instead of var) to the addons repo.

or even better:

Create a plugin with ES6 syntax and use command line builder to build CKEditor.

== Expected result ==

Everything should work.

== Actual result ==

Validating JS files
plugin.js (line 19):
    missing ; before statement
ES6_FEATURE. this language feature is only supported in es6 mode: let declarations. Use --language_in=ECMASCRIPT6 or ECMASCRIPT6_STRICT to enable ES6 features. at .tmp803549/plugin.js line 19 : 12

== Other details (browser, OS, CKEditor version, installed plugins) ==
"	New Feature	confirmed	Nice to have (we want to work on it)		General