可輕松的修改 XHR 的請求和響應：XHook

jopen 10年前發布 | 19K 次閱讀 XHook JavaScript開發

XHook 可輕松的修改 XHR 的請求和響應。主要用于：

Cache requests in memory, localStorage, etc.
Insert authentication headers

S3 Request Signing, see S3 Hook

Simulate responses

Create fake transparent backends for testing purposes

Sending Error statistics to Google Analytics
Polyfil CORS, by offloading requests to an iframe then splicing the response back in, see XDomain
Devious practical jokes
Preflight GZip compression, see XZip (In progress)

示例代碼：

//modify 'responseText' of 'example2.txt'
xhook.after(function(request, response) {
  if(request.url.match(/example\.txt$/)) 
    response.text = response.text.replace(/[aeiou]/g,'z');
});

支持的瀏覽器：IE8+, Chrome, Firefox, Safari