src/emrun_prejs.js

/**
 * @license
 * Copyright 2013 The Emscripten Authors
 * SPDX-License-Identifier: MIT
 */

// Route URL GET parameters to argc+argv
if (typeof window === "object") {
  Module['arguments'] = window.location.search.substr(1).trim().split('&');
  // If no args were passed arguments = [''], in which case kill the single empty string.
  if (!Module['arguments'][0]) {
    Module['arguments'] = [];
  }
}