REGRESSION(r105396): Can not drag and drop text while composing an iCloud.com email - Log into icloud.com - Compose an email with multiple lines - select a line of text and try to drag it to the beginning of the message. Observe a "Cannot upload attachment" error message alert. Regressed in http://trac.webkit.org/changeset/105396
This might be a bug on iCloud. http://trac.webkit.org/changeset/105396 changed WebKit so that it fires drop event on edit drag. My guess is that iCloud isn't checking types attribute on the dataTransfer interface: http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dom-datatransfer-types
Unfortunately, I can't seem to create an iCloud account so I can't verify this myself.
I've confirmed my diagnose. iCloud.com is considering all drop events to be files drops, which isn't necessarily the case.
The question is whether we should consider this is a compatibility issue, revert the change, and ask whatwg/W3C to change the spec, or we should contact iCloud.com to change "fix" their website.
iCloud is going to fix this on their end. Resolving.
(In reply to comment #5) > iCloud is going to fix this on their end. Resolving. Great! Thanks for the follow up.