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koa-helmet

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koa-helmet

Security header middleware collection for koa

  • 8.0.1
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
205K
decreased by-13.49%
Maintainers
1
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Created

What is koa-helmet?

koa-helmet is a middleware for Koa.js that helps secure your Koa applications by setting various HTTP headers. It is a Koa wrapper for the popular Helmet.js library, which is widely used in Express.js applications.

What are koa-helmet's main functionalities?

Content Security Policy

This feature helps prevent cross-site scripting (XSS) attacks and other cross-site injections by setting the Content-Security-Policy header.

const Koa = require('koa');
const helmet = require('koa-helmet');
const app = new Koa();

app.use(helmet.contentSecurityPolicy({
  directives: {
    defaultSrc: ["'self'"],
    styleSrc: ["'self'", 'https:']
  }
}));

app.listen(3000);

DNS Prefetch Control

This feature controls browser DNS prefetching by setting the X-DNS-Prefetch-Control header.

const Koa = require('koa');
const helmet = require('koa-helmet');
const app = new Koa();

app.use(helmet.dnsPrefetchControl({ allow: false }));

app.listen(3000);

Frameguard

This feature helps prevent clickjacking attacks by setting the X-Frame-Options header.

const Koa = require('koa');
const helmet = require('koa-helmet');
const app = new Koa();

app.use(helmet.frameguard({ action: 'deny' }));

app.listen(3000);

Hide Powered-By

This feature removes the X-Powered-By header to make it harder for attackers to see what technology your site is using.

const Koa = require('koa');
const helmet = require('koa-helmet');
const app = new Koa();

app.use(helmet.hidePoweredBy());

app.listen(3000);

HSTS

This feature adds the Strict-Transport-Security header to enforce secure (HTTP over SSL/TLS) connections to the server.

const Koa = require('koa');
const helmet = require('koa-helmet');
const app = new Koa();

app.use(helmet.hsts({ maxAge: 31536000 }));

app.listen(3000);

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Package last updated on 28 Nov 2024

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