I was searching for ZeroClipboard.swf
today, and I got the same problem.
Looking around, I found a tutorial about it here. You can see there's a hosted version of ZeroClipboard.swf
, here is the url:
http://davidwalsh.name/demo/ZeroClipboard.swf
I tried this version and it works like a charm. Now, I highly recommend you to host your proper version of this file, to avoid this kind of problem later.