关于javascript:油猴跨域数据传输脚本

利用多页面共享的脚本，
能够实现利用油猴跨域共享页面数据。

// ==UserScript==// @name         跨页面数据传输脚本// @namespace    http://tampermonkey.net/// @version      0.1// @description  利用共用脚本实现跨域通信// @connect      *// @author       dzt// @grant       GM_getValue// @grant       GM_setValue// @grant       GM_removeValueChangeListener// @grant       GM_addValueChangeListener// @run-at      document-end// @match       页面A// @include     页面B// @include     页面C// ==/UserScript==(function() {    'use strict';    unsafeWindow.__t_sendCrossDomainMessage= function(data){        let __source = location.href;         let __domain = document.domain;        //利用createObjectURL生成不反复的uuid        const __url = URL.createObjectURL(new Blob());        const uuid = __url.substring(__url.lastIndexOf('/') + 1);        console.log('生成新的crossDomainMessage-uuid:',uuid);        GM_setValue('data',data);        GM_setValue('source',__source);        GM_setValue('domain',__domain);        GM_setValue('uuid',uuid);//触发数据变更    }    //ValueChangeListener须要应用值类型的变动来触发，这里应用了uuid字符串触发    //fn可选退出数据源判断    unsafeWindow.__t_onReceiveCrossDomainMessage = function(fn){        GM_removeValueChangeListener('uuid');        GM_addValueChangeListener('uuid',(name,oldValue,newValue,remote)=>{            //console.log(name,oldValue,newValue,remote);            console.log('crossDomainMessage-uuid 已扭转','crossDomainMessage-uuid is Change!!');            let uuid = newValue;            let data = GM_getValue('data');            let source = GM_getValue('source');            let domain = GM_getValue('domain');            return fn({uuid,data,source,domain,source});        })     }    // Your code here...})();