vivid-planet/koala-framework — pull request #181 by Ben-Ho (2014-03-20 12:35:33+00:00)
Title: LinkTag_Empty does not have a getImageData() function, check if existing

Somehow Kwc_Basic_LinkTag_Empty_Component was part of childComponents
and therefore the Event tried to get ImageData to delete the cache,
but the function doesn't even exist. So just check if function is
existing.