I tested in Chrome, Safari, Firefox and Explorer in several computers but it only works inline and not in the CMS. In my testing server works everything. I have uploaded the files several times but still don't work...
Well I know when the error occurs. In the server I have several domains and the principal domain is www.principal-domain.com
so when I login to the CMS using domain1.principal-domain.com/admin_cms/ everything works fine, but when I login using www.domain1.com/admin_cms the CMS won't work.
How can I work this around so the CMS will work with the domain and not with the subdomain?