Upload not working in VPN Setting

[3dlyx]

I try to get the Gallery PlugIn running in an intranet environment that does not allow to load/include external sources. This seems to trigger the dreaded

‘You browser doesn’t have Flash or HTML5 support. Check also if page have no JavaScript errors.’

Message. On a similar DEV Server in a public setting the plugIn works great, but as soon as I go VPN the message appears.

– What triggers this message? How is the availability of HTML5 or Flash determined?
– I cannot find external sources that fail to load except some from syndication.twitter.com and gravatar.com. none of the seem to be scripts, what externel source could be the culprit?

Thansk a lot,
Lars

[Author]

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