Intermittent problem with orders saving going to a blank page

[TimothyJones]

Sometimes after entering orders clicking "save" or "ready" doesn't save the orders, it goes to a blank page.

This has only been reported by users on mobile or VPNs, so I suspect it might be to do with the javascript not being loaded correctly (or something). Some investigation is required, and then it's worth fixing.

See: http://www.webdiplomacy.net/contrib/phpBB3/viewtopic.php?f=17&t=160&p=7795#p7795