<iframe id="myiframe" src="/foo/bar.html" .../>
I understand http://www.mysite.com and http://mysite.com are thought different domain names no matter where they physically exist, but I have never set up almost anything to make use of the www. subdomain. And So I have no clue in which the www part is originating from. My best guess is the fact that I have to change something during my vhosts configuration. I am using Apache 2 and I've got a quite simple virtual host config file:
<VirtualHost *> ServerName mysite.com DocumentRoot /path/to/mysite.com/www </VirtualHost>
"www.mysite.com" != "mysite.com"
mix frame/window communication must be on a single protocol+hostname+port