Add example

examples/clients/auth.php/vanilla.html

@@ -0,0 +1,33 @@
+<html>
+<head>
+<meta charset="utf-8" /> 
+<script>
+var authUrl = 'authorize.php'; // hostname ending in '.auth0.com'
+var clientId = 'default'; // client id as defined in auth0
+var audience = 'api.php'; // api audience as defined in auth0
+window.onload = function () {
+    var match = RegExp('[#&]access_token=([^&]*)').exec(window.location.hash);
+    var accessToken = match && decodeURIComponent(match[1].replace(/\+/g, ' '));
+    if (!accessToken) {
+        document.location = authUrl+'?audience='+audience+'&response_type=token&client_id='+clientId+'&redirect_uri='+document.location.href;
+    } else {
+        document.location.hash = '';
+        var req = new XMLHttpRequest();
+        req.onreadystatechange = function () {
+            if (req.readyState==4) {
+                console.log(req.responseText);
+                document.getElementById('output').innerHTML = JSON.stringify(JSON.parse(req.responseText), undefined, 4);
+            }
+        }
+        url = 'api.php/records/posts?join=categories&join=tags&join=comments&filter=id,eq,1';
+        req.open("GET", url, true);
+        req.setRequestHeader('X-Authorization', 'Bearer '+accessToken);
+        req.send();
+    }
+};
+</script>
+</head>
+<body>
+<pre id="output"></pre>
+</body>
+</html>