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828 B
828 B
DNS prefetch control header for Express
This middleware lets you set the X-DNS-Prefetch-Control to control browsers' DNS prefetching. Read more about it on MDN and on Chromium's docs.
Usage:
const dnsPrefetchControl = require('dns-prefetch-control')
// Set X-DNS-Prefetch-Control: off
app.use(dnsPrefetchControl())
// Set X-DNS-Prefetch-Control: off
app.use(dnsPrefetchControl({ allow: false }))
// Set X-DNS-Prefetch-Control: on
app.use(dnsPrefetchControl({ allow: true }))