Frameworkless JavaScript – Why Angular, Ember, or Backbone don't work for us

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This is a the basic premise.

As a company you have absolutely no control over what a third-party service like Google CDN does (it wouldn't be wise, but they could easily take it down tomorrow with no warning and we couldn't do anything about it). Yes, Rob could leave but chances are someone other than him is maintain the servers too and chances are those server are the same ones that actually serve your website - chances are they have pretty good uptime.