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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
/** Returns the domain of a URL, but safely and in ASCII; URLs without domains
(such as about:blank) return the scheme, Unicode domains get stripped down
to ASCII */
"use strict";
this.domainFromUrl = (function() {
return function urlDomainForId(location) {
// eslint-disable-line no-unused-vars
let domain = location.hostname;
if (!domain) {
domain = location.origin.split(":")[0];
if (!domain) {
domain = "unknown";
}
}
if (domain.search(/^[a-z0-9._-]{1,1000}$/i) === -1) {
// Probably a unicode domain; we could use punycode but it wouldn't decode
// well in the URL anyway. Instead we'll punt.
domain = domain.replace(/[^a-z0-9._-]/gi, "");
if (!domain) {
domain = "site";
}
}
return domain;
};
})();
null;
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