cors-anywhere
Version:
CORS Anywhere is a reverse proxy which adds CORS headers to the proxied request. Request URL is taken from the path
108 lines (104 loc) • 2.62 kB
HTML
<html>
<head>
<meta charset="utf-8">
<title>Demo of CORS Anywhere</title>
<meta name="viewport" content="width=device-width">
<style>
html, body {
margin: 0;
height: 100%;
padding: 3px;
font-family: Arial, sans-serif;
font-size: 16px;
}
* {
-moz-box-sizing: border-box;
box-sizing: border-box;
}
label { display: block; }
input {
display: block;
width: 100%;
padding: 8px 5px;
border: 1px solid #CCC;
}
button {
display: inline-block;
width: 49%;
padding: 8px;
}
textarea {
width: 100%;
height: 100%;
}
#top {
height: 180px;
position: relative;
}
#bottom {
height: 100%;
margin-top: -180px;
padding-top: 180px;
}
</style>
</head>
<body>
<div id="top">
CORS Anywhere demo • <a href="https://github.com/Rob--W/cors-anywhere/">Github</a> • <a href="http://cors-anywhere.herokuapp.com">Live server</a>.
<label>
Url to be fetched (example: <a href="//robwu.nl/dump.php">robwu.nl/dump.php</a>)
<input type="url" id="url" value="">
</label>
<label>
If using POST, enter the data:
<input type="text" id="data">
</label>
<label>
<button id="get">GET</button><button id="post">POST</button>
</label>
</div>
<div id="bottom">
<textarea id="output"></textarea>
</div>
<script>
var cors_api_url = 'https://cors-anywhere.herokuapp.com/';
function doCORSRequest(options, printResult) {
var x = new XMLHttpRequest();
x.open(options.method, cors_api_url + options.url);
x.onload = x.onerror = function() {
printResult(
options.method + ' ' + options.url + '\n' +
x.status + ' ' + x.statusText + '\n\n' +
(x.responseText || '')
);
};
if (/^POST/i.test(options.method)) {
x.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
}
x.send(options.data);
}
// Bind event
(function() {
var urlField = document.getElementById('url');
var dataField = document.getElementById('data');
var outputField = document.getElementById('output');
document.getElementById('get').onclick =
document.getElementById('post').onclick = function(e) {
e.preventDefault();
doCORSRequest({
method: this.id === 'post' ? 'POST' : 'GET',
url: urlField.value,
data: dataField.value
}, function printResult(result) {
outputField.value = result;
});
};
})();
if (typeof console === 'object') {
console.log('// To test a local CORS Anywhere server, set cors_api_url. For example:');
console.log('cors_api_url = "http://localhost:8080/"');
}
</script>
</body>
</html>