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From: David Mark on 18 Nov 2009 19:48
On Nov 18, 6:35 pm, "Richard Maher" <maher...(a)hotspamnotmail.com>
wrote:
> Hi David,
>
> > It is very easy to determine if a script has loaded (in any browser)
> > and it certainly doesn't involve the onerror property.  Use callbacks..
>
> Umm, the "callback" doesn't get called because there was some error loading
> the script (or SiteMinder SSO etc substitutes a logon screen) how do you
> discover that has happened?

You don't. So you design your app accordingly.

What happens when a firewall strips out one or more of your scripts?
If your design is sound, nothing. If not, disaster. Same concept
here. ;)
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