Do I need to add the files who are hosted on CDN inside in manifest file HTML 5 manifest file for offline caching?

According to spec you can't include these files because they are not same origin as manifest file.

As far as I am aware you cannot. According to the W3C documentation all cached content must satisfy the same origin policy. You can read all about it here among other places.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.