I don't see any mention of c++ being compiled to javascript. Without that, this seems to be server-only, not full stack.
On the other hand, there is Google Web Toolkit which lets you write both client and server code in Java, which is very close to C++ in performance, and compiles the client code to very efficient javascript. (CSS is also compiled into being very efficient.) http://www.gwtproject.org/overview.html
On the other hand, there is Google Web Toolkit which lets you write both client and server code in Java, which is very close to C++ in performance, and compiles the client code to very efficient javascript. (CSS is also compiled into being very efficient.) http://www.gwtproject.org/overview.html