HiActually its not Browser or servers problem, the sidekick misses the component component in one of the following cases:Either it takes earlier reference from /content/<your page name> or the jsp of your component results in error. So instead of deleting the complete page just remove the references...

HiThere is an alternate way to do that instead of package manager you could start your test server, go to crxde then tools and then import site. There specify the url and import full site.