Cross-Domain Requests with jQuery
For a project I need to get the source code of web page of different other domains. I have tried following code:
$('#container').load('http://google.com');
$.ajax({
url: 'http://news.bbc.co.uk',
type: 'GET',
success: function(res) {
var headline = $(res.responseText).find('a.tsh').text();
alert(headline);
}
});
Still I am not getting any results but just a blank alert box.
By default all browsers restrict cross-domain requests, you can get around this by using YQL as a proxy. See a guide here: http://ajaxian.com/archives/using-yql-as-a-proxy-for-cross-domain-ajax
For security reasons scripts aren't able to access content from other domains. Mozilla has a long article about HTTP access control, but the bottom line is that without the website themselves adding support for cross-domain requests, you're screwed.
This code is Working Perfectly with the help of JQuery and YQL
$(document).ready(function(){
var container = $('#target');
$('.ajaxtrigger').click(function(){
doAjax($(this).attr('href'));
return false;
});
function doAjax(url){
if(url.match('^http')){
$.getJSON("http://query.yahooapis.com/v1/public/yql?"+
"q=select%20*%20from%20html%20where%20url%3D%22"+
encodeURIComponent("http://www.yahoo.com")+
"%22&format=xml'&callback=?",
function(data){
if(data.results[0]){
var data = filterData(data.results[0]);
container.html(data);
} else {
var errormsg = '<p>Error: could not load the page.</p>';
container.html(errormsg);
}
}
);
} else {
$('#target').load(url);
}
}
function filterData(data){
data = data.replace(/<?\/body[^>]*>/g,'');
data = data.replace(/[\r|\n]+/g,'');
data = data.replace(/<--[\S\s]*?-->/g,'');
data = data.replace(/<noscript[^>]*>[\S\s]*?<\/noscript>/g,'');
data = data.replace(/<script[^>]*>[\S\s]*?<\/script>/g,'');
data = data.replace(/<script.*\/>/,'');
return data;
}
});
The solution for your case is JSON with padding or JSONP.
You will need an HTML element that specified for its src attribute a URL that returns JSON like this:
<script type="text/javascript" src="http://differentDomain.com/RetrieveUser?UserId=1234">
You can search online for a more in-depth explanation, but JSONP is definitely your solution for this.