bundle-url.js

"use strict";

// This file exists because Parcel doesn't know how to load web worker files on a file:// origin.
// I have a PR out that should help with this.

/* globals document:readonly */
var bundleURL = null;

function getBundleURLCached() {
  if (!bundleURL) {
    bundleURL = getBundleURL();
  }

  return bundleURL;
}

function getBundleURL() {
  try {
    throw new Error();
  } catch (err) {
    var matches = ('' + err.stack).match(/(https?|file|ftp):\/\/[^)\n]+/g);

    if (matches) {
      return getBaseURL(matches[0]);
    }
  }

  return '/';
}

function getBaseURL(url) {
  return ('' + url).replace(/^((?:https?|file|ftp):\/\/.+)\/[^/]+$/, '$1') + '/';
} // TODO: Replace uses with `new URL(url).origin` when ie11 is no longer supported.


function getOrigin(url) {
  if (url.slice(0, 7) === 'file://') {
    return 'file://';
  }
  let matches = ('' + url).match(/(https?|file|ftp):\/\/[^/]+/);

  if (!matches) {
    throw new Error('Origin not found');
  }

  return matches[0];
}

exports.getBundleURL = getBundleURLCached;
exports.getBaseURL = getBaseURL;
exports.getOrigin = getOrigin;