Client stores the server's "public" key in the local storage, encrypted with a secure password you don't save anywhere. The client is now offline. The client wants to perform trusted actions.

PayPal reveals that writing server-side software in node.js rather than Java is allowing it to serve web pages more rapidly and simplifying web development. How replacing Java with JavaScript is ...

The server must send a response to the browser indicating the JavaScript file upload was successful; and; The client’s browser must provide an Ajax-based response indicating the file uploaded ...