That's fine for jQuery, Bootstrap etc, however most modern frameworks are bundled into a single package with all of the templates and logic, making a shared CDN useless.
It would be interesting to see some benchmarks of a cached CDN Angular file and non-cached template/logic file, however lots of other sites would have to jump on board to get the cached file into users' browsers reliably.
It would be interesting to see some benchmarks of a cached CDN Angular file and non-cached template/logic file, however lots of other sites would have to jump on board to get the cached file into users' browsers reliably.