Created
February 21, 2018 14:23
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CORS example request from https://www.html5rocks.com/en/tutorials/cors/
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// Create the XHR object. | |
function createCORSRequest(method, url) { | |
var xhr = new XMLHttpRequest(); | |
if ("withCredentials" in xhr) { | |
// XHR for Chrome/Firefox/Opera/Safari. | |
xhr.open(method, url, true); | |
} else if (typeof XDomainRequest != "undefined") { | |
// XDomainRequest for IE. | |
xhr = new XDomainRequest(); | |
xhr.open(method, url); | |
} else { | |
// CORS not supported. | |
xhr = null; | |
} | |
return xhr; | |
} | |
// Helper method to parse the title tag from the response. | |
function getTitle(text) { | |
return text.match('<title>(.*)?</title>')[1]; | |
} | |
// Make the actual CORS request. | |
function makeCorsRequest() { | |
// This is a sample server that supports CORS. | |
var url = 'http://html5rocks-cors.s3-website-us-east-1.amazonaws.com/index.html'; | |
var xhr = createCORSRequest('GET', url); | |
if (!xhr) { | |
alert('CORS not supported'); | |
return; | |
} | |
// Response handlers. | |
xhr.onload = function() { | |
var text = xhr.responseText; | |
var title = getTitle(text); | |
alert('Response from CORS request to ' + url + ': ' + title); | |
}; | |
xhr.onerror = function() { | |
alert('Woops, there was an error making the request.'); | |
}; | |
xhr.send(); | |
} | |
makeCorsRequest(); |
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