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Client2.html
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<!DOCTYPE html>
<html>
<title>CORS Tutorial</title>
<body onload="getBlogPosts();">
<style>
.post {margin-bottom: 20px;}
</style>
<div id="output"></div>
<script>
var createXhr = function(method, url) {
var xhr = new XMLHttpRequest();
xhr.onerror = function() {
document.getElementById('output').innerHTML = 'ERROR';
};
xhr.open(method, url, true);
return xhr;
};
var getBlogPosts = function () {
var xhr = createXhr('GET', 'http://127.0.0.1:9999/api/posts');
xhr.setRequestHeader('Timezone-Offset', new Date().getTimezoneOffset());
xhr.setRequestHeader('Sample-Source', 'CORS in Action');
xhr.onload = function () {
var data = JSON.parse(xhr.responseText);
var elem = document.getElementById('output');
for (var postId in data) {
var postText = data[postId]['post'];
var div = document.createElement('div');
div.className = 'post';
div.id = 'postId' + postId;
div.appendChild(document.createTextNode(postText));
var a = document.createElement('a');
a.innerHTML = 'Delete post #' + postId;
a.href = '#';
a.onclick = function (postId) {
return function () {
deletePost(postId);
};
}
(postId);
div.appendChild(document.createTextNode(' '));
div.appendChild(a);
elem.appendChild(div);
}
};
xhr.send();
};
var deletePost = function (postId) {
var url = 'http://127.0.0.1:9999/api/posts/' + postId;
var xhr = createXhr('DELETE', url);
xhr.onload = function () {
if (xhr.status == 204) {
var element = document.getElementById('postId' + postId);
element.parentNode.removeChild(element);
}
};
xhr.send();
};
</script>
</body></html>