Even with the global images turned off data: images get through, in fact I can't see how they would make it to ShouldLoad without a uri, and LoadImage from nsImageLoadingContent.cpp only tries to get the imgIRequest url. Filed that as bug 501455 with a testcase.
Even with the global images turned off data: images get through, in fact I can't see how they would make it to ShouldLoad without a uri, and LoadImage from nsImageLoadingC ontent. cpp only tries to get the imgIRequest url. Filed that as bug 501455 with a testcase.