How to use browser cache in node.js?

Question

My site runs on a node.js server, and when I test my site on the Google Page Rendering Tool, it shows me how to use the browser cache. I searched a lot on the Internet, but so far no luck. If anyone knows how to use browser cache in node.js, please let me know.

Answer 1

The browser cache is mainly controlled by the user, outside the control of Node. The only thing you can really do is set the max-age header for static files served by Node.js.

Assuming you are using express, cache the file in one day:

app.use(express.static(__dirname + '/public', { maxAge: 86400000 }));