Last Chance: Cyber Monday 40% OFF

Days
Hours
Minutes

USE CODE: CM2022

Tackle WordPress weaknesses and fortify your website Learn more

Cross-origin security headers were created to instruct browsers and webservers on how to handle information sharing between different resources. These different resources can be different webservers, processes or different documents or pages in a web browser.

The different Cross-Origin headers are:

  1. CORS: Cross-Origin Resource Sharing
  2. CORP: Cross-Origin Resource Policy
  3. COEP: Cross-Origin Embedder Policy
  4. COOP: Cross-Origin Opener Policy
  5. CORB: Cross-Origin Read Blocking

Cross-origin isolation

The goal of setting a combination of CORS headers is to achieve what we call ‘Cross-origin isolation’. Easily put, it means that either a site is configured not to exchange any information with other sources, or all other sources are specifically allowed. The other way around, the source has also set CORS headers to confirm sharing resources with the mentioned site.

In this article, we provided a more in-depth description of the several Cross-Origin security headers,

Table of Contents

Peter Tak

Peter Tak

Security Officer at Really Simple Plugins

Read More

Advanced Security

Tackle WordPress weaknesses and fortify your website. New hardening features!

Definitions

Want to know the in and outs of security jargon? Get to know our features.

Premium support will offer assistance in 24 hours. If you need help, or have any questions just contact our awesome support team/

Related articles