Same-origin URLs
Checks if two URLs are on the same origin.
- Use
URL.protocol
andURL.host
to check if both URLs have the same protocol and host.
const isSameOrigin = (origin, destination) => origin.protocol === destination.protocol && origin.host === destination.host; const origin = new URL('https://www.30secondsofcode.org/about'); const destination = new URL('https://www.30secondsofcode.org/contact'); isSameOrigin(origin, destination); // true const other = new URL('https://developer.mozilla.org); isSameOrigin(origin, other); // false