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ezekielchentnik/relativeize.js

Created July 22, 2019 10:45
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relativeize.js
function relativize(url, to) {
let [,base,origin] = to.match(/^(([a-z]+:\/\/[^\/]+)(\/.*?)?)(\/[^\/]*)?$/i)
url = String(url).replace(/^\/([^\/])/g, `${origin}/$1`);
if (!url.match(/^([a-z]+\:)\/\//i)) url = `${base}/${url}`;
return url;
}
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