NewEduCoderBuild/js/jupyter.js

(function (open) {
  XMLHttpRequest.prototype.open = function (method, url, async, user, password) {
    this.addEventListener("load", function () {
      if (method === "PUT") {
        window.top.postMessage('jupytermessage', '*');
      }
    });
    open.call(this, method, url, async, user, password);
  };
})(XMLHttpRequest.prototype.open);

(function (fetch) {
  window.fetch = function (url, options) {
    options = options || {}
    return fetch.apply(this, arguments).then(function (response) {
      try {
        if (options.method === "PUT" || (typeof url === "object" && url.method === "PUT")) {
          window.top.postMessage('jupytermessage', '*');
        }
      } catch (error) {

      }
      return response; 
    });
  };

})(window.fetch);

function saveCode() {
  var saveEvent = new KeyboardEvent('keydown', {
    key: 's',
    ctrlKey: true
  });

  document.dispatchEvent(saveEvent);
}

function onReceiveMessage(e) {
  try {
    if (mes.type === 'saveCode') {
      saveCode()
    }
  } catch (error) {
    console.log('error:', error, e);
  }
}

(function () {
  setInterval(() => {
    saveCode()
  }, 5000)
})();
window.addEventListener('message', onReceiveMessage);