A Web Platform API that allows users to login to websites with their federated accounts in a privacy preserving manner.

HTTP and URIs are the basis of the World Wide Web, yet they are often misunderstood, and their implementations and uses are sometimes incomplete or incorrect.

This document tries to improve this situation by providing a set of good practices to improve implementations of HTTP and related standards (Web servers, server-side Web engines), as well as their use.

This specification defines two APIs for persistent data storage in Web clients: one for accessing key-value pair data and another for accessing structured data.

good advice: if you know your [validation] errors and their consequences, it's can be ok not to validate 100%.