Our web app uses the Google CDN to link to the jQuery library and it’s starting to become very prevalent on our site. We have a major problem every now and then when clients install a firewall and specifically allow our website – but they know nothing of these external javascript libraries. It’s not a simple case of doing something like checking whether the client can run Javscript – because they can … they just don’t get jQuery and hence functionality is broken.
Is there such a thing as a “backup” JS library where I can specify two locations to check? My other alternative is to provide an FAQ entry for people using a firewall. Hosting the libraries locally isn’t really a good idea for us because we’re trying to keep bandwidth down, and I like having those libraries elsewhere.
If I include two <script> tags it will download them both, correct?
Found here Fallback for jQuery UI from google CDN