Html filter lowercases object properties

[Dinu]

Test: in the placeholder plugin, replace _cke_placeholder with _cke_Placeholder. It will break the plugin because in the htmlFiltercallback the P is lowercased.

[Garry Yao]

"_cke_placeholder" is used as an internal attribute and not intended to be changed.

[Dinu]

Point is not _cke_placeholder, point is any element having custom attributes will have them lowercased. My external app already in place uses camelback notation custom attributes and it will be a pain to lowercase everything. _cke_placeholder was just to reproduce.

[Garry Yao]

XHTML prohibit lower-cased attributes, browser lower-case it already before sending to our own html processing.

[Dinu]

You're right, I missed that spot :) I was relying on the DOM, didn't consider they are serialized/desiarialized before editing.