Netjet Express Preload Middleware

Netjet is an Express.js middleware designed to automatically inject `<link rel="preload">` headers into HTML responses. These headers enable web browsers to perform early resource fetching, which can significantly improve page load performance by fetching critical assets like scripts, styles, and images before the browser's main parsing engine discovers them. The package is currently at version 1.4.0 and appears to be in an active maintenance state, with recent updates focusing on bug fixes and additional preload attributes. It differentiates itself by offering automatic, configurable scanning of HTML responses for subresources to preload, and leverages an `lru-cache` for efficient caching of resource analysis. Its primary use case is optimizing web application delivery for HTTP/2 and modern browsers.