I'm having this problem a while ago.
When i'm debugging my webapp on my mac, it runs just fine. does not quit any moment using or on hold.
But for compiled version, if i'm on a mac, the app just ends with "The application has gone off-line. Please try again later.", at any time, in any function or doing any process. It's simply random!
It works fine on "any" version of windows, with firefox or chrome.
Any help or ideas will be great!!
Development and debug
Safari, latest version