Google went down one day and all of these CDNs stopped working at our colo. We got over 50 calls of people complaining their sites were down. Turns out the si

Google went down one day and all of these CDNs stopped working at our colo. We got over 50 calls of people complaining their sites were down. Turns out the sites were blocking on waiting for the javascript (timing out after a few minutes). That is the only time it has happened, but this is what makes me fear being fully dependent on these CDNs. So be advised: add a fallback mechanism.