All of these apis seem to be exposed only when hosting the Chakra engine. They even call out the fact that it's not for in browser: > However with JavaScript’

All of these apis seem to be exposed only when hosting the Chakra engine. They even call out the fact that it's not for in browser: > However with JavaScript’s increasing popularity in beyond-the-browser scenarios, developers have been requesting to host the Chakra engine outside the browser to enable JavaScript programmability in their native/managed applications across the client and the server.