I was playing around with the google map API one day when it started throwing very strange errors. Upon further investigation, I found the library URL was retur

I was playing around with the google map API one day when it started throwing very strange errors. Upon further investigation, I found the library URL was returning an html captcha page - not very useful to a browser expecting a javascript file. Even google screws up simple stuff sometimes. So I think I'll pass on using their CDN for something as small as the jquery library. You're optimizing the wrong thing if you're worried about this.