text: 
  function filePackagerPatch_getPreloadedPackageNode(filename) {
      var fs = require('fs');
      var path = require('path');
      filename = path.normalize(path.resolve(__dirname, filename));
      const buf = fs.readFileSync(filename);
      // convert to ArrayBuffer
      return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
  }
  
  function filePackagerPatch_isNodeOrShell() {
      var ENVIRONMENT_IS_WEB = typeof window === 'object';
      var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
      var ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function' && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER;
      var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
      return ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL;
  }
  
  if (typeof location === 'undefined') {
    // create a fake location to overrule the file_packager
    var location = {
      pathname: '/'
    };
  }
  
  if (filePackagerPatch_isNodeOrShell()) {
      Module.getPreloadedPackage = Module.getPreloadedPackage || filePackagerPatch_getPreloadedPackageNode;
  } else {
    // need a hack to locate relative file in browser settings for the file packager
    var wrappee = Module.locateFile || function(path, prefix) { return prefix + path };
    Module.locateFile = function (path, prefix) {
      if (prefix || !path.endsWith('.data')) {
        return wrappee(path, prefix);
      }
      // file packager is called before a proper script location decection
      var base = _scriptDir ? _scriptDir : (typeof importScripts === 'function' ? self.location.href : (typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : ''));
      if (base.indexOf('blob:') !== 0) {
        base = base.substr(0, base.lastIndexOf('/') + 1);
      } else {
        base = '';
      }
      return wrappee(path, base);
    };
  }
  