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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | 1098x 1x 1098x 1098x 1098x 1098x 1098x 1098x | import defined from "./defined.js";
let a;
/**
* Given a URL, determine whether that URL is considered cross-origin to the current page.
*
* @private
*/
function isCrossOriginUrl(url) {
if (!defined(a)) {
a = document.createElement("a");
}
// copy window location into the anchor to get consistent results
// when the port is default for the protocol (e.g. 80 for HTTP)
a.href = window.location.href;
// host includes both hostname and port if the port is not standard
const host = a.host;
const protocol = a.protocol;
a.href = url;
// IE only absolutizes href on get, not set
// eslint-disable-next-line no-self-assign
a.href = a.href;
return protocol !== a.protocol || host !== a.host;
}
export default isCrossOriginUrl;
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