jsFiddle 中的 AJAX

如何模拟 jQuery$.get() http://api.jquery.com/jQuery.get/在 jsFiddle 中加载来自不同域的数据？

/* This won't work in jsFiddle. */    
$.get("http://www.google.com", function(data) { ... } );

众所周知，有一个限制：

由于浏览器安全限制，大多数“Ajax”请求都受到同源策略的约束；该请求无法成功检索来自不同域、子域或协议的数据。

我通过在 jsFiddle 中创建一个 Fiddle 来解决这个问题，只是为了测试 Ajax 负载。这是一些非常简单的 HTML，带有图像和一些副本 - 您可以在这里看到它：

<div class="container">
    <img id="picture" src="http://media.smashingmagazine.com/uploads/2012/01/best-of-no-150px.png" />

    <p>This post will help you get to know the iOS SDK a little better. It leads you through some choreographed steps of iOS app development, even if you have little or no programming knowledge. It covers some key principles and applies these directly to something useful and relevant: the creation of a simple but functioning portfolio app for the iPhone.</p>
    <div style="clear: both;"></div>
</div>

body {
    font-family: Arial;
    color: #333333;
    line-height: 1.4em;
}

img {
    margin: 0 0 1em 1em;
    padding: 1em;
    background: #ffffff;
    border: 1px solid #eaeaea;
    display: inline-block;
    float: right;   
        -moz-border-radius: 8px;
        -webkit-border-radius: 8px;
        border-radius: 8px;

}

.container {
  background: #fafafa;  
  padding: 1em;        
}

JS Fiddle 演示 http://jsfiddle.net/deborah/pkmvD/.

如果使用Firebug点击“结果”框架，就可以获得iframe的源URL。当您将此源 URL 复制到包含 Ajax 请求的 Fiddle 时，它​​将起作用，因为现在它位于同一域中。这是一个演示：

<div class="excontainer">
    <button id="loadbasic">basic load</button>
    <div id="result"></div>

</div>

body {
 font-family: Arial;   
}

.excontainer {
  padding: 1em;    
}

label {
 display: block;
 width: 100%;   
}

p {
 padding: .5em;   
}

a, a:visited {
 color: #2d9afd;   
}

.changed {
  color: #ff0099;   
}

.highlight {
  background: #faffda;   
}

.entered {
  color: #f5560a;
}

.green {
 color: #7fbf38;   
}

.hellomouse, .clickable, #foo, #event {
 cursor: pointer;   
}

button {
 margin-bottom: 1em;   
}

div {
  margin: 1em 0;   
}

#foo {
 display: inline-block;   
}



ul {
 margin: 1em 0;   
}

.form, form, .stuff, .morestuff, stuff3 {
    margin: 1em 0;
    padding: 1em;
    background: #ececec;
}

input {
 font-size: 1.1em;
 padding: 2px;    
}

.placeholder {
   color: #ff0099;  
   font-weight: normal; 
}

::-webkit-input-placeholder {
   color: #cccccc;
}

:-moz-placeholder {  
   color: #cccccc;  
}

:-ms-input-placeholder {
    color: #cccccc;
}

:focus::-webkit-input-placeholder {
    color:transparent;
}

.content {
    margin-top: 5px;
    padding: 1em;
    background: #eeeeee;     
}

// learn jquery ajax 
// http://net.tutsplus.com/tutorials/javascript-ajax/5-ways-to-make-ajax-calls-with-jquery/

// no need to specify document ready

$(function(){
    // don't cache ajax or content won't be fresh
    $.ajaxSetup ({
        cache: false
    });
    var ajax_load = "<img src='http://automobiles.honda.com/images/current-offers/small-loading.gif' alt='loading...' />";

    // load() functions
    var loadUrl = "http://fiddle.jshell.net/deborah/pkmvD/show/";
    $("#loadbasic").click(function(){
        $("#result").html(ajax_load).load(loadUrl);
    });

// end  
});

JS Fiddle 演示 http://jsfiddle.net/deborah/Ln95K/31/.