GM_cookie.set cannot set the sameSite value to None

When the value of sameSite is set to Lax/Strict, it is successful. When it is set to None, the execution fails (execution should be allowed when secure is true).The browser is able to set sameSite to None using document.cookie.

Expected Behavior

Cookie set successfully.

Actual Behavior

The message port closed before a response was received.

Specifications

Chromium: (i.e. 64.0.3282.140)

Script

GM_cookie.set({ url: 'https://www.google.com/', name: 'test', value: 'value111', domain: '.google.com', path: '/', secure: true, httpOnly: true, sameSite: "None", expirationDate: Math.floor(Date.now() / 1000) + (60 60 24 * 30) }, function(error) { if (error) { console.error(error); } else { console.log('Cookie set successfully.'); } });

// ==UserScript==
// @name MyName
// @namespace http://mywebsite.com
// @Version 1.0
// @description try to take over the world!
// @author Me
// @match https://www.google.com/
// @require http://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js
// @grant        GM_cookie
// @grant        unsafeWindow
// ==/UserScript==
(function() {
    'use strict';
unsafeWindow.GM_cookie = GM_cookie;//Debugging in the browser
  GM_cookie.set({
    url: 'https://www.google.com/',
    name: 'test',
    value: 'value111',
    domain: '.google.com',
    path: '/',
    secure: true,
    httpOnly: true,
    sameSite: "None",
    expirationDate: Math.floor(Date.now() / 1000) + (60 * 60 * 24 * 30)
  }, function(error) {
    if (error) {
      console.error(error);
    } else {
      console.log('Cookie set successfully.');
    }
  });
})

Tampermonkey / tampermonkey