id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13712	Migrate the entire code base to strict mode	Piotrek Koszuliński		"Currently only ~25% of files are in strict mode. Unfortunately, historically some ugly concepts like arguments.callee were used what makes the transition tricky.

I pushed branch:strict-mode with some basic changes. Unfortunately, it seems that I didn't resolve the arguments.callee usages correctly as few tests started failing. Namely (on Chrome at lest):

* http://tests.ckeditor.dev:1030/tests/plugins/dialogui/dirmarker
* http://tests.ckeditor.dev:1030/tests/plugins/image/image
* http://tests.ckeditor.dev:1030/tests/plugins/image2/editing

I've been replacing aguments.callee with fn names without deeper investigations, so I might have made some mistakes. Second thing is that enabling strict mode may change code behaviour. It's not happening often, but IIRC there are some edge cases.

Anyway, it needs further investigation."	Task	confirmed	Normal		General