Korolev runs a single-page application on the server side, keeping in the browser only a bridge to receive commands and send events. The page loads instantly and works fast, because it does a minimal amount of computation. It's important that Korolev provides a unified environment for full stack development. Client and server are now combined into a single app without any REST protocol or something else in the middle.
[comment]: <> ([![Browser support results](https://fomkin.org/korolev/browser-support.svg)](https://saucelabs.com/u/yelbota))