JavaScript 跨域请求库 XDomain

程序员必上的开发者服务平台 —— DevStore

XDomain 是 JavaScript CORS 跨域请求的一个替代产品，无需任何服务器端的配置。只需要在同域下放置一个 proxy.html 文件即可。该库利用 XHook 来获取所有 XHR，可以无缝的和其他库协同工作。

Features

• Simple

• Library Agnostic

• With jQuery  $.ajax (and subsequently $.get, $.post)

• With Angular $http service

• Cross domain XHR just magically works

• No need to modify the server code

• No need to use IE's silly XDomainRequest Object

• Easy XHR access to file servers:

• Amazon

• Dropbox

• Includes XHook and its features

• proxy.html files (slaves) may:

• White-list domains

• White-list paths using regular expressions (e.g. only allow API calls: /^\/api/)

• Highly performant

• Seamless integration with FormData

示例代码：

//do some vanilla XHRvar xhr = new XMLHttpRequest();xhr.open('GET', 'http://xyz.example.com/secret/file.txt');xhr.onreadystatechange = function(e) {  if(xhr.readyState === 4)    alert(xhr.responseText);};xhr.send();//or if we are using jQuery...$.get('http://xyz.example.com/secret/file.txt').done(function(data) {  console.log("got result: ", data);});