Function parseURL

client-src/index.js:124–160

(resourceQuery)

 * @returns {ParsedURL} parsed URL
 */
const parseURL = (resourceQuery) => {
  /** @type {ParsedURL} */
  let result = {};

  if (typeof resourceQuery === "string" && resourceQuery !== "") {
    const searchParams = resourceQuery.slice(1).split("&");

    for (let i = 0; i < searchParams.length; i++) {
      const pair = searchParams[i].split("=");

      /** @type {EXPECTED_ANY} */
      (result)[pair[0]] = decodeURIComponent(pair[1]);
    }
  } else {
    // Else, get the url from the <script> this file was called with.
    const scriptSource = getCurrentScriptSource();

    let scriptSourceURL;

    try {
      // The placeholder `baseURL` with `window.location.href`,
      // is to allow parsing of path-relative or protocol-relative URLs,
      // and will have no effect if `scriptSource` is a fully valid URL.
      scriptSourceURL = new URL(scriptSource, self.location.href);
    } catch (_err) {
      // URL parsing failed, do nothing.
      // We will still proceed to see if we can recover using `resourceQuery`
    }

    if (scriptSourceURL) {
      result = scriptSourceURL;
      result.fromCurrentScript = true;
    }
  }

  return result;
};

const parsedResourceQuery = parseURL(__resourceQuery);