This Express middleware sets some HTTP response headers to try to disable client-side caching.

To use it:

const nocache = require("nocache");

// ...

app.use(nocache());

This sets three headersdisabling a lot of browser caching:

• Cache-Control: no-storeno-cachemust-revalidateproxy-revalidate
• Expires: 0
• Surrogate-Control: no-store

You may wish to do this if you want to ensure that users have up-to-date resourcesor if you want to clear out an old version for some reason.