You need to find how to use cookies with ajax. Another possibility is to write method or script which will make copy/paste for you programatically. Why you think that hidden frame ----- Original Message ----- From: Garito Sorry but perhaps as second options, Jaroslav I prefer to wait if someone could send another answer more zope way and this kind of hacks seems dangerous to me. Anyway, sonner or later I'll inspect the history issue with AJAX ( http://blogs.pathf.com/agileajax/2007/09/really-simple-h.html as a library example) and they use hidden frames and things like this to solve this problems and then you way don't seems as "bad" to me I think another way could be don't send the copy and then the paste action and send a copy/paste action with the urls of the original object and the final destination but it doesn't like so much to me too Any ideas? (Thanks, Jaroslav!) 2007/11/21, Jaroslav Lukesh <lukesh@seznam.cz>: Hi, try to use hidden frame instead of ajax - it is similar technology as ajax, but it is ajax's precedensor. Regards, JL. ----- Original Message ----- From: Garito I'm trying to do an AJAX copy/paste action but zope raises this: The data in the clipboard could not be read, possibly due to cookie data being truncated by your web browser. Try copying fewer objects. How can solve this issue?