next/dist/esm/shared/lib/router/utils/parse-relative-url.js

The React Framework

import { getLocationOrigin } from "../../utils";
import { searchParamsToUrlQuery } from "./querystring";
/**
 * Parses path-relative urls (e.g. `/hello/world?foo=bar`). If url isn't path-relative
 * (e.g. `./hello`) then at least base must be.
 * Absolute urls are rejected with one exception, in the browser, absolute urls that are on
 * the current origin will be parsed as relative
 */ export function parseRelativeUrl(url, base) {
    const globalBase = new URL(typeof window === "undefined" ? "http://n" : getLocationOrigin());
    const resolvedBase = base ? new URL(base, globalBase) : url.startsWith(".") ? new URL(typeof window === "undefined" ? "http://n" : window.location.href) : globalBase;
    const { pathname , searchParams , search , hash , href , origin  } = new URL(url, resolvedBase);
    if (origin !== globalBase.origin) {
        throw new Error("invariant: invalid relative URL, router received " + url);
    }
    return {
        pathname,
        query: searchParamsToUrlQuery(searchParams),
        search,
        hash,
        href: href.slice(globalBase.origin.length)
    };
}

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