id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13867	CKEditor fails to load on IE8/9 when a polyfill for classList is included	sam	Marek Lewandowski	"== Steps to reproduce ==

1. load a classList polyfill onto the page with polyfill from https://developer.mozilla.org/en/docs/Web/API/Element/classList
2. load ckeditor onto the same page after the polyfill

== Expected result ==

Everything should work nice and fine.

== Actual result ==

There will be errors on the page about this.$.classList is undefined for elements within the text-editor iframe $("".cke_wysiwyg_frame .cke_reset""). 

All the features will not work except the very basic textbox. 

== Other details (browser, OS, CKEditor version, installed 

My environment was IE8 on windows 7, but I believe this can happen on ie9 as well. The ckeditor version was 4.5.4.

My obseravtion is that the elements within the iframe need to also detect if classList is available, instead of doing the detection just once during page load.

I traced to this commit.
[https://github.com/ckeditor/ckeditor-dev/commit/0836608]"	Bug	closed	Normal	CKEditor 4.5.5	General	4.5.4	fixed	Drupal	theodore@… wim.leers@…