diff --git a/src/server/cyberhex-code/test/user.html b/src/server/cyberhex-code/test/user.html
index 59e4edb..82d9e35 100644
--- a/src/server/cyberhex-code/test/user.html
+++ b/src/server/cyberhex-code/test/user.html
@@ -1,542 +1,106 @@
+<!DOCTYPE html>
 <html>
-    <head>
-        <title>lbuchs/WebAuthn Test</title>
-        <meta charset="UTF-8">
-        <script>
+<head>
+    <title>lbuchs/WebAuthn Test</title>
+    <meta charset="UTF-8">
+</head>
+<body>
+    <h1>lbuchs/WebAuthn</h1>
+    <div>
+        <button type="button" onclick="createRegistration()">Register</button>
+        <button type="button" onclick="checkRegistration()">Login</button>
+    </div>
 
-        /**
-         * creates a new FIDO2 registration
-         * @returns {undefined}
-         */
+    <script>
         async function createRegistration() {
             try {
-
-                // check browser support
                 if (!window.fetch || !navigator.credentials || !navigator.credentials.create) {
                     throw new Error('Browser not supported.');
                 }
 
-                // get create args
-                let rep = await window.fetch('server.php?fn=getCreateArgs' + getGetParams(), {method:'GET', cache:'no-cache'});
+                let rep = await window.fetch('server.php?fn=getCreateArgs', { method: 'GET', cache: 'no-cache' });
                 const createArgs = await rep.json();
 
-                // error handling
                 if (createArgs.success === false) {
-                    throw new Error(createArgs.msg || 'unknown error occured');
+                    throw new Error(createArgs.msg || 'Unknown error occurred');
                 }
 
-                // replace binary base64 data with ArrayBuffer. a other way to do this
-                // is the reviver function of JSON.parse()
-                recursiveBase64StrToArrayBuffer(createArgs);
-
-                // create credentials
                 const cred = await navigator.credentials.create(createArgs);
 
-                // create object
                 const authenticatorAttestationResponse = {
-                    transports: cred.response.getTransports  ? cred.response.getTransports() : null,
-                    clientDataJSON: cred.response.clientDataJSON  ? arrayBufferToBase64(cred.response.clientDataJSON) : null,
+                    transports: cred.response.getTransports ? cred.response.getTransports() : null,
+                    clientDataJSON: cred.response.clientDataJSON ? arrayBufferToBase64(cred.response.clientDataJSON) : null,
                     attestationObject: cred.response.attestationObject ? arrayBufferToBase64(cred.response.attestationObject) : null
                 };
 
-                // check auth on server side
-                rep = await window.fetch('server.php?fn=processCreate' + getGetParams(), {
-                    method  : 'POST',
-                    body    : JSON.stringify(authenticatorAttestationResponse),
-                    cache   : 'no-cache'
+                rep = await window.fetch('server.php?fn=processCreate', {
+                    method: 'POST',
+                    body: JSON.stringify(authenticatorAttestationResponse),
+                    cache: 'no-cache'
                 });
                 const authenticatorAttestationServerResponse = await rep.json();
 
-                // prompt server response
                 if (authenticatorAttestationServerResponse.success) {
-                    reloadServerPreview();
-                    window.alert(authenticatorAttestationServerResponse.msg || 'registration success');
-
+                    window.alert(authenticatorAttestationServerResponse.msg || 'Registration success');
                 } else {
                     throw new Error(authenticatorAttestationServerResponse.msg);
                 }
 
             } catch (err) {
-                reloadServerPreview();
-                window.alert(err.message || 'unknown error occured');
+                window.alert(err.message || 'Unknown error occurred');
             }
         }
 
-
-        /**
-         * checks a FIDO2 registration
-         * @returns {undefined}
-         */
         async function checkRegistration() {
             try {
-
                 if (!window.fetch || !navigator.credentials || !navigator.credentials.create) {
                     throw new Error('Browser not supported.');
                 }
 
-                // get check args
-                let rep = await window.fetch('server.php?fn=getGetArgs' + getGetParams(), {method:'GET',cache:'no-cache'});
+                let rep = await window.fetch('server.php?fn=getGetArgs', { method: 'GET', cache: 'no-cache' });
                 const getArgs = await rep.json();
 
-                // error handling
                 if (getArgs.success === false) {
                     throw new Error(getArgs.msg);
                 }
 
-                // replace binary base64 data with ArrayBuffer. a other way to do this
-                // is the reviver function of JSON.parse()
-                recursiveBase64StrToArrayBuffer(getArgs);
-
-                // check credentials with hardware
                 const cred = await navigator.credentials.get(getArgs);
 
-                // create object for transmission to server
                 const authenticatorAttestationResponse = {
                     id: cred.rawId ? arrayBufferToBase64(cred.rawId) : null,
-                    clientDataJSON: cred.response.clientDataJSON  ? arrayBufferToBase64(cred.response.clientDataJSON) : null,
+                    clientDataJSON: cred.response.clientDataJSON ? arrayBufferToBase64(cred.response.clientDataJSON) : null,
                     authenticatorData: cred.response.authenticatorData ? arrayBufferToBase64(cred.response.authenticatorData) : null,
                     signature: cred.response.signature ? arrayBufferToBase64(cred.response.signature) : null,
                     userHandle: cred.response.userHandle ? arrayBufferToBase64(cred.response.userHandle) : null
                 };
 
-                // send to server
-                rep = await window.fetch('server.php?fn=processGet' + getGetParams(), {
-                    method:'POST',
+                rep = await window.fetch('server.php?fn=processGet', {
+                    method: 'POST',
                     body: JSON.stringify(authenticatorAttestationResponse),
-                    cache:'no-cache'
+                    cache: 'no-cache'
                 });
                 const authenticatorAttestationServerResponse = await rep.json();
 
-                // check server response
                 if (authenticatorAttestationServerResponse.success) {
-                    reloadServerPreview();
-                    window.alert(authenticatorAttestationServerResponse.msg || 'login success');
+                    window.alert(authenticatorAttestationServerResponse.msg || 'Login success');
                 } else {
                     throw new Error(authenticatorAttestationServerResponse.msg);
                 }
 
             } catch (err) {
-                reloadServerPreview();
-                window.alert(err.message || 'unknown error occured');
+                window.alert(err.message || 'Unknown error occurred');
             }
         }
 
-        function clearRegistration() {
-            window.fetch('server.php?fn=clearRegistrations' + getGetParams(), {method:'GET',cache:'no-cache'}).then(function(response) {
-                return response.json();
-
-            }).then(function(json) {
-               if (json.success) {
-                   reloadServerPreview();
-                   window.alert(json.msg);
-               } else {
-                   throw new Error(json.msg);
-               }
-            }).catch(function(err) {
-                reloadServerPreview();
-                window.alert(err.message || 'unknown error occured');
-            });
-        }
-
-
-        function queryFidoMetaDataService() {
-            window.fetch('server.php?fn=queryFidoMetaDataService' + getGetParams(), {method:'GET',cache:'no-cache'}).then(function(response) {
-                return response.json();
-
-            }).then(function(json) {
-               if (json.success) {
-                   window.alert(json.msg);
-               } else {
-                   throw new Error(json.msg);
-               }
-            }).catch(function(err) {
-                window.alert(err.message || 'unknown error occured');
-            });
-        }
-
-        /**
-         * convert RFC 1342-like base64 strings to array buffer
-         * @param {mixed} obj
-         * @returns {undefined}
-         */
-        function recursiveBase64StrToArrayBuffer(obj) {
-            let prefix = '=?BINARY?B?';
-            let suffix = '?=';
-            if (typeof obj === 'object') {
-                for (let key in obj) {
-                    if (typeof obj[key] === 'string') {
-                        let str = obj[key];
-                        if (str.substring(0, prefix.length) === prefix && str.substring(str.length - suffix.length) === suffix) {
-                            str = str.substring(prefix.length, str.length - suffix.length);
-
-                            let binary_string = window.atob(str);
-                            let len = binary_string.length;
-                            let bytes = new Uint8Array(len);
-                            for (let i = 0; i < len; i++)        {
-                                bytes[i] = binary_string.charCodeAt(i);
-                            }
-                            obj[key] = bytes.buffer;
-                        }
-                    } else {
-                        recursiveBase64StrToArrayBuffer(obj[key]);
-                    }
-                }
-            }
-        }
-
-        /**
-         * Convert a ArrayBuffer to Base64
-         * @param {ArrayBuffer} buffer
-         * @returns {String}
-         */
         function arrayBufferToBase64(buffer) {
             let binary = '';
             let bytes = new Uint8Array(buffer);
             let len = bytes.byteLength;
             for (let i = 0; i < len; i++) {
-                binary += String.fromCharCode( bytes[ i ] );
+                binary += String.fromCharCode(bytes[i]);
             }
             return window.btoa(binary);
         }
-
-        /**
-         * Get URL parameter
-         * @returns {String}
-         */
-        function getGetParams() {
-            let url = '';
-
-            url += '&apple=' + (document.getElementById('cert_apple').checked ? '1' : '0');
-            url += '&yubico=' + (document.getElementById('cert_yubico').checked ? '1' : '0');
-            url += '&solo=' + (document.getElementById('cert_solo').checked ? '1' : '0');
-            url += '&hypersecu=' + (document.getElementById('cert_hypersecu').checked ? '1' : '0');
-            url += '&google=' + (document.getElementById('cert_google').checked ? '1' : '0');
-            url += '&microsoft=' + (document.getElementById('cert_microsoft').checked ? '1' : '0');
-            url += '&mds=' + (document.getElementById('cert_mds').checked ? '1' : '0');
-
-            url += '&requireResidentKey=' + (document.getElementById('requireResidentKey').checked ? '1' : '0');
-
-            url += '&type_usb=' + (document.getElementById('type_usb').checked ? '1' : '0');
-            url += '&type_nfc=' + (document.getElementById('type_nfc').checked ? '1' : '0');
-            url += '&type_ble=' + (document.getElementById('type_ble').checked ? '1' : '0');
-            url += '&type_int=' + (document.getElementById('type_int').checked ? '1' : '0');
-            url += '&type_hybrid=' + (document.getElementById('type_hybrid').checked ? '1' : '0');
-
-            url += '&fmt_android-key=' + (document.getElementById('fmt_android-key').checked ? '1' : '0');
-            url += '&fmt_android-safetynet=' + (document.getElementById('fmt_android-safetynet').checked ? '1' : '0');
-            url += '&fmt_apple=' + (document.getElementById('fmt_apple').checked ? '1' : '0');
-            url += '&fmt_fido-u2f=' + (document.getElementById('fmt_fido-u2f').checked ? '1' : '0');
-            url += '&fmt_none=' + (document.getElementById('fmt_none').checked ? '1' : '0');
-            url += '&fmt_packed=' + (document.getElementById('fmt_packed').checked ? '1' : '0');
-            url += '&fmt_tpm=' + (document.getElementById('fmt_tpm').checked ? '1' : '0');
-
-            url += '&rpId=' + encodeURIComponent(document.getElementById('rpId').value);
-
-            url += '&userId=' + encodeURIComponent(document.getElementById('userId').value);
-            url += '&userName=' + encodeURIComponent(document.getElementById('userName').value);
-            url += '&userDisplayName=' + encodeURIComponent(document.getElementById('userDisplayName').value);
-
-            if (document.getElementById('userVerification_required').checked) {
-                url += '&userVerification=required';
-
-            } else if (document.getElementById('userVerification_preferred').checked) {
-                url += '&userVerification=preferred';
-
-            } else if (document.getElementById('userVerification_discouraged').checked) {
-                url += '&userVerification=discouraged';
-            }
-
-            return url;
-        }
-
-        function reloadServerPreview() {
-            let iframe = document.getElementById('serverPreview');
-            iframe.src = iframe.src;
-        }
-
-        function setAttestation(attestation) {
-            let inputEls = document.getElementsByTagName('input');
-            for (const inputEl of inputEls) {
-                if (inputEl.id && inputEl.id.match(/^(fmt|cert)\_/)) {
-                    inputEl.disabled = !attestation;
-                }
-                if (inputEl.id && inputEl.id.match(/^fmt\_/)) {
-                    inputEl.checked = attestation ? inputEl.id !== 'fmt_none' : inputEl.id === 'fmt_none';
-                }
-                if (inputEl.id && inputEl.id.match(/^cert\_/)) {
-                    inputEl.checked = attestation ? inputEl.id === 'cert_mds' : false;
-                }
-            }
-        }
-
-        /**
-         * force https on load
-         * @returns {undefined}
-         */
-        window.onload = function() {
-            if (location.protocol !== 'https:' && location.host !== 'localhost') {
-                location.href = location.href.replace('http', 'https');
-            }
-            if (!document.getElementById('rpId').value) {
-                document.getElementById('rpId').value = location.hostname;
-            }
-
-            if (!document.getElementById('attestation_yes').checked) {
-                setAttestation(false);
-            }
-        }
-
-        </script>
-        <style>
-            body {
-                font-family:sans-serif;
-                margin: 0 20px;
-                padding: 0;
-            }
-            .splitter {
-                display: flex;
-                flex-direction: row;
-                flex-wrap: wrap;
-                margin: 0;
-                padding: 0;
-            }
-            .splitter > .form {
-                flex: 1;
-                min-width: 600px;
-            }
-            .splitter > .serverPreview {
-                width: 740px;
-                min-height: 700px;
-                margin: 0;
-                padding: 0;
-                border: 1px solid grey;
-                display: flex;
-                flex-direction: column;
-            }
-
-            .splitter > .serverPreview iframe {
-                width: 700px;
-                flex: 1;
-                border: 0;
-            }
-
-        </style>
-    </head>
-    <body>
-        <h1 style="margin: 40px 10px 2px 0;">lbuchs/WebAuthn</h1>
-        <div style="font-style: italic;">A simple PHP WebAuthn (FIDO2) server library.</div>
-        <div class="splitter">
-            <div class="form">
-                <div>&nbsp;</div>
-                <div>&nbsp;</div>
-                <div>Simple working demo for the <a href="https://github.com/lbuchs/WebAuthn">lbuchs/WebAuthn</a> library.</div>
-                <div>
-                    <div>&nbsp;</div>
-                    <table>
-                        <tbody><tr>
-                                <td>
-                                    <button type="button" onclick="createRegistration()">&#10133; new registration</button>
-                                </td>
-                                <td>
-                                    <button type="button" onclick="checkRegistration()">&#10068; check registration</button>
-                                </td>
-                                <td>
-                                    <button type="button" onclick="clearRegistration()">&#9249; clear all registrations</button>
-                                </td>
-                            </tr>
-                        </tbody>
-                    </table>
-                    <div>&nbsp;</div>
-
-                    <div>
-                        <input type="checkbox" id="requireResidentKey" name="requireResidentKey">
-                        <label for="requireResidentKey">Use Client-side discoverable Credentials / Passkeys
-                            <i style="font-size: 0.8em;">Warning: most client-side modules and authenticators don't allow to delete single client side credentials.
-                                You have to reset the full device to remove the credentials again.</i>
-                        </label>
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">Relying Party</div>
-                    <p style="margin:0 0 5px 0;font-size:0.9em;font-style: italic;">A valid domain string that identifies the
-                        WebAuthn Relying Party<br/>on whose behalf a given registration or authentication ceremony is being performed.</p>
-                    <div>
-                        <label for="rpId">RP ID:</label>
-                        <input type="text" id="rpId" name="rpId" value="">
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">User</div>
-                    <div style="margin-bottom:12px">
-                        <label for="userId">User ID (Hex):</label>
-                        <input type="text" id="userId" name="userId" value="64656d6f64656d6f" required pattern="[0-9a-fA-F]{2,}">
-                        <i style="font-size: 0.8em;">You get the user ID back when checking registration (as userHandle), if you're using client-side discoverable credentials.
-                        You can identify with this ID the user who wants to login.
-                        A user handle is an opaque byte sequence with a maximum size of 64 bytes, and is not meant to be displayed to the user.
-                        The user handle MUST NOT contain personally identifying information about the user, such as a username or e-mail address.</i>
-                    </div>
-                    <div style="margin-bottom:12px">
-                        <label for="userName">User Name:</label>
-                        <input type="text" id="userName" name="userName" value="demo" required pattern="[0-9a-zA-Z]{2,}">
-                        <i style="font-size: 0.8em;">only for display, i.e., aiding the user in determining the difference between user accounts with similar display names.</i>
-                    </div>
-                    <div style="margin-bottom:6px">
-                        <label for="userDisplayName">User Display Name:</label>
-                        <input type="text" id="userDisplayName" name="userDisplayName" value="Demo Demolin" required>
-                        <i style="font-size: 0.8em;">A human-palatable name for the user account, intended only for display.</i>
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">user verification</div>
-                    <div>
-                        <input type="radio" id="userVerification_required" name="userVerification">
-                        <label for="userVerification_required">required <i style="font-size: 0.8em;">User verification is required (e.g. by pin), the operation will fail if the response does not have the UV flag.</i></label>
-                    </div>
-
-                    <div>
-                        <input type="radio" id="userVerification_preferred" name="userVerification">
-                        <label for="userVerification_preferred">preferred <i style="font-size: 0.8em;">user verification is prefered, the operation will not fail if the response does not have the UV flag.</i></label>
-                    </div>
-
-                    <div>
-                        <input type="radio" id="userVerification_discouraged" name="userVerification" checked>
-                        <label for="userVerification_discouraged">discouraged <i style="font-size: 0.8em;">user verification should not be employed as to minimize the user interaction during the process.</i></label>
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">type of authenticator</div>
-                    <div>
-                        <input type="checkbox" id="type_usb" name="type_usb" checked>
-                        <label for="type_usb">USB</label>
-                    </div>
-                    <div>
-                        <input type="checkbox" id="type_nfc" name="type_nfc" checked>
-                        <label for="type_nfc">NFC</label>
-                    </div>
-                    <div>
-                        <input type="checkbox" id="type_ble" name="type_ble" checked>
-                        <label for="type_ble">BLE</label>
-                    </div>
-                    <div>
-                        <input type="checkbox" id="type_hybrid" name="type_hybrid" checked>
-                        <label for="type_hybrid">hybrid <i style="font-size: 0.8em;">Passkeys via mobile device, ...</i></label>
-                    </div>
-                    <div>
-                        <input type="checkbox" id="type_int" name="type_int" checked>
-                        <label for="type_int">internal <i style="font-size: 0.8em;">Passkeys on the device, Windows Hello, Android SafetyNet, Apple, ...</i></label>
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">attestation</div>
-                    <div>
-                        <input type="radio" id="attestation_yes" value="yes" name="attestation" onchange="setAttestation(this.value === 'yes')" checked>
-                        <label for="attestation_yes">yes</label>
-                    </div>
-                    <div>
-                        <input type="radio" id="attestation_no" value="no" name="attestation" onchange="setAttestation(this.value === 'yes')">
-                        <label for="attestation_no">no</label>
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">attestation statement format</div>
-                    <div>
-                        <input type="checkbox" id="fmt_android-key" name="fmt_android-key" checked>
-                        <label for="fmt_android-key">android-key</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="fmt_android-safetynet" name="fmt_android-safetynet" checked>
-                        <label for="fmt_android-safetynet">android-safetynet</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="fmt_apple" name="fmt_apple" checked>
-                        <label for="fmt_apple">apple</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="fmt_fido-u2f" name="fmt_fido-u2f" checked>
-                        <label for="fmt_fido-u2f">fido-u2f</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="fmt_none" name="fmt_none">
-                        <label for="fmt_none">none</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="fmt_packed" name="fmt_packed" checked>
-                        <label for="fmt_packed">packed</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="fmt_tpm" name="fmt_tpm" checked>
-                        <label for="fmt_tpm">tpm</label>
-                    </div>
-
-
-                    <div>&nbsp;</div>
-                    <div style="font-weight: bold">attestation root certificates</div>
-
-                    <div>
-                        <input type="checkbox" id="cert_mds" name="mds" checked>
-                        <label for="cert_mds">Accept keys signed by <a href="https://fidoalliance.org/metadata/" target="_blank">FIDO Alliance Metadata Service</a></label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="cert_apple" name="apple">
-                        <label for="cert_apple">Accept keys signed by apple root ca</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="cert_yubico" name="yubico">
-                        <label for="cert_yubico">Accept keys signed by yubico root ca</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="cert_solo" name="solo">
-                        <label for="cert_solo">Accept keys signed by solokeys root ca</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="cert_hypersecu" name="hypersecu">
-                        <label for="cert_hypersecu">Accept keys signed by hypersecu root ca</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="cert_google" name="google">
-                        <label for="cert_google">Accept keys signed by google root ca</label>
-                    </div>
-
-                    <div>
-                        <input type="checkbox" id="cert_microsoft" name="microsoft">
-                        <label for="cert_microsoft">Accept keys signed by Microsofts collection of trusted TPM root ca</label>
-                    </div>
-
-                    <div style="font-size: 0.7em">(Nothing checked = accept all)</div>
-                    <div>&nbsp;</div>
-
-                    <div>
-                        <button type="button" onclick="queryFidoMetaDataService()">&#128472; update root certificates from FIDO Alliance Metadata Service (MDS)</button>
-                    </div>
-
-                    <div>&nbsp;</div>
-                    <div>If you select a root ca, direct attestation is required to validate your client with the root.<br>
-                        The browser may warn you that he will provide informations about your device.<br>
-                        When not checking against any root ca (deselect all certificates),
-                        the client may change the assertion from the authenticator (for instance, using an anonymization CA),<br>
-                        the browser may not warn about providing informations about your device.
-                   </div>
-                    <div style="margin-top:20px;font-size: 0.7em;font-style: italic">
-                        Copyright &copy; 2023 Lukas Buchs - <a href="https://raw.githubusercontent.com/lbuchs/WebAuthn/master/LICENSE">license therms</a>
-                    </div>
-
-                </div>
-            </div>
-            <div class="serverPreview">
-                <p style="margin-left:10px;font-weight: bold;">Here you can see what's saved on the server:</p>
-                <iframe src="server.php?fn=getStoredDataHtml" id="serverPreview"></iframe>
-            </div>
-        <div>
-    </body>
-</html>
\ No newline at end of file
+    </script>
+</body>
+</html>
