diff --git a/routers/web/user/setting/security/webauthn.go b/routers/web/user/setting/security/webauthn.go
index 0054318867..826562f157 100644
--- a/routers/web/user/setting/security/webauthn.go
+++ b/routers/web/user/setting/security/webauthn.go
@@ -6,6 +6,8 @@ package security
 import (
 	"errors"
 	"net/http"
+	"strconv"
+	"time"
 
 	"code.gitea.io/gitea/models/auth"
 	wa "code.gitea.io/gitea/modules/auth/webauthn"
@@ -23,8 +25,8 @@ import (
 func WebAuthnRegister(ctx *context.Context) {
 	form := web.GetForm(ctx).(*forms.WebauthnRegistrationForm)
 	if form.Name == "" {
-		ctx.Error(http.StatusConflict)
-		return
+		// Set name to the hexadecimal of the current time
+		form.Name = strconv.FormatInt(time.Now().UnixNano(), 16)
 	}
 
 	cred, err := auth.GetWebAuthnCredentialByName(ctx.Doer.ID, form.Name)
diff --git a/templates/user/auth/webauthn.tmpl b/templates/user/auth/webauthn.tmpl
index ea773d2566..f1c4f29fd9 100644
--- a/templates/user/auth/webauthn.tmpl
+++ b/templates/user/auth/webauthn.tmpl
@@ -5,6 +5,7 @@
 				<h3 class="ui top attached header">
 				{{.locale.Tr "twofa"}}
 				</h3>
+				{{template "user/auth/webauthn_error" .}}
 				<div class="ui attached segment">
 					{{svg "octicon-key" 56}}
 					<h3>{{.locale.Tr "webauthn_insert_key"}}</h3>
@@ -18,5 +19,4 @@
 		</div>
 	</div>
 </div>
-{{template "user/auth/webauthn_error" .}}
 {{template "base/footer" .}}
diff --git a/templates/user/auth/webauthn_error.tmpl b/templates/user/auth/webauthn_error.tmpl
index b6467de1aa..f90882ef12 100644
--- a/templates/user/auth/webauthn_error.tmpl
+++ b/templates/user/auth/webauthn_error.tmpl
@@ -1,22 +1,13 @@
-<div class="ui small modal" id="webauthn-error">
-	<div class="header">{{.locale.Tr "webauthn_error"}}</div>
-	<div class="content">
-		<div class="ui negative message">
-			<div class="header">
-			{{.locale.Tr "webauthn_error"}}
-			</div>
-			<div class="gt-hidden" data-webauthn-error-msg="browser"><p>{{.locale.Tr "webauthn_unsupported_browser"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="unknown"><p>{{.locale.Tr "webauthn_error_unknown"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="insecure"><p>{{.locale.Tr "webauthn_error_insecure"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="unable-to-process"><p>{{.locale.Tr "webauthn_error_unable_to_process"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="duplicated"><p>{{.locale.Tr "webauthn_error_duplicated"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="empty"><p>{{.locale.Tr "webauthn_error_empty"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="timeout"><p>{{.locale.Tr "webauthn_error_timeout"}}</div>
-			<div class="gt-hidden" data-webauthn-error-msg="general"></div>
-		</div>
-	</div>
-	<div class="actions">
-		<button onclick="window.location.reload()" class="success ui button gt-hidden webauthn_error_timeout">{{.locale.Tr "webauthn_reload"}}</button>
-		<button class="ui cancel button">{{.locale.Tr "cancel"}}</button>
+<div id="webauthn-error" class="ui small gt-hidden">
+	<div class="content ui negative message gt-df gt-fc gt-gap-3">
+		<div class="header">{{.locale.Tr "webauthn_error"}}</div>
+		<div id="webauthn-error-msg"></div>
+		<div class="gt-hidden" data-webauthn-error-msg="browser">{{.locale.Tr "webauthn_unsupported_browser"}}</div>
+		<div class="gt-hidden" data-webauthn-error-msg="unknown">{{.locale.Tr "webauthn_error_unknown"}}</div>
+		<div class="gt-hidden" data-webauthn-error-msg="insecure">{{.locale.Tr "webauthn_error_insecure"}}</div>
+		<div class="gt-hidden" data-webauthn-error-msg="unable-to-process">{{.locale.Tr "webauthn_error_unable_to_process"}}</div>
+		<div class="gt-hidden" data-webauthn-error-msg="duplicated">{{.locale.Tr "webauthn_error_duplicated"}}</div>
+		<div class="gt-hidden" data-webauthn-error-msg="empty">{{.locale.Tr "webauthn_error_empty"}}</div>
+		<div class="gt-hidden" data-webauthn-error-msg="timeout">{{.locale.Tr "webauthn_error_timeout"}}</div>
 	</div>
 </div>
diff --git a/templates/user/settings/security/webauthn.tmpl b/templates/user/settings/security/webauthn.tmpl
index 59022eb1c9..e541f764bc 100644
--- a/templates/user/settings/security/webauthn.tmpl
+++ b/templates/user/settings/security/webauthn.tmpl
@@ -3,6 +3,7 @@
 </h4>
 <div class="ui attached segment">
 	<p>{{.locale.Tr "settings.webauthn_desc" | Str2html}}</p>
+	{{template "user/auth/webauthn_error" .}}
 	<div class="ui key list">
 		{{range .WebAuthnCredentials}}
 			<div class="item">
@@ -28,7 +29,6 @@
 	</div>
 </div>
 
-{{template "user/auth/webauthn_error" .}}
 
 <div class="ui g-modal-confirm delete modal" id="delete-registration">
 	<div class="header">
diff --git a/web_src/css/base.css b/web_src/css/base.css
index 49bdfed1b7..b352e6d98e 100644
--- a/web_src/css/base.css
+++ b/web_src/css/base.css
@@ -699,6 +699,11 @@ a.label,
   border: 1px solid var(--color-secondary);
 }
 
+.ui.info.message .header,
+.ui.blue.message .header {
+  color: var(--color-blue);
+}
+
 .ui.info.message,
 .ui.attached.info.message,
 .ui.blue.message,
@@ -708,6 +713,12 @@ a.label,
   border-color: var(--color-info-border);
 }
 
+.ui.success.message .header,
+.ui.positive.message .header,
+.ui.green.message .header {
+  color: var(--color-green);
+}
+
 .ui.success.message,
 .ui.attached.success.message,
 .ui.positive.message,
@@ -717,6 +728,12 @@ a.label,
   border-color: var(--color-success-border);
 }
 
+.ui.error.message .header,
+.ui.negative.message .header,
+.ui.red.message .header {
+  color: var(--color-red);
+}
+
 .ui.error.message,
 .ui.attached.error.message,
 .ui.red.message,
@@ -728,6 +745,11 @@ a.label,
   border-color: var(--color-error-border);
 }
 
+.ui.warning.message .header,
+.ui.yellow.message .header {
+  color: var(--color-yellow);
+}
+
 .ui.warning.message,
 .ui.attached.warning.message,
 .ui.yellow.message,
diff --git a/web_src/css/repo.css b/web_src/css/repo.css
index b2b544a7ea..4e300be878 100644
--- a/web_src/css/repo.css
+++ b/web_src/css/repo.css
@@ -2405,11 +2405,6 @@
   padding-bottom: 0 !important;
 }
 
-.settings .content > .header,
-.settings .content .segment {
-  box-shadow: 0 1px 2px 0 var(--color-box-header);
-}
-
 .settings.webhooks .list > .item:not(:first-child),
 .settings.githooks .list > .item:not(:first-child),
 .settings.actions .list > .item:not(:first-child) {
diff --git a/web_src/js/features/user-auth-webauthn.js b/web_src/js/features/user-auth-webauthn.js
index f30017afc6..8085313d22 100644
--- a/web_src/js/features/user-auth-webauthn.js
+++ b/web_src/js/features/user-auth-webauthn.js
@@ -1,11 +1,13 @@
-import $ from 'jquery';
-import {encode, decode} from 'uint8-to-base64';
-import {hideElem, showElem} from '../utils/dom.js';
+import {encodeURLEncodedBase64, decodeURLEncodedBase64} from '../utils.js';
+import {showElem, hideElem} from '../utils/dom.js';
 
 const {appSubUrl, csrfToken} = window.config;
 
-export function initUserAuthWebAuthn() {
-  if ($('.user.signin.webauthn-prompt').length === 0) {
+export async function initUserAuthWebAuthn() {
+  hideElem('#webauthn-error');
+
+  const elPrompt = document.querySelector('.user.signin.webauthn-prompt');
+  if (!elPrompt) {
     return;
   }
 
@@ -13,49 +15,52 @@ export function initUserAuthWebAuthn() {
     return;
   }
 
-  $.getJSON(`${appSubUrl}/user/webauthn/assertion`, {})
-    .done((makeAssertionOptions) => {
-      makeAssertionOptions.publicKey.challenge = decodeURLEncodedBase64(makeAssertionOptions.publicKey.challenge);
-      for (let i = 0; i < makeAssertionOptions.publicKey.allowCredentials.length; i++) {
-        makeAssertionOptions.publicKey.allowCredentials[i].id = decodeURLEncodedBase64(makeAssertionOptions.publicKey.allowCredentials[i].id);
-      }
-      navigator.credentials.get({
-        publicKey: makeAssertionOptions.publicKey
-      })
-        .then((credential) => {
-          verifyAssertion(credential);
-        }).catch((err) => {
-          // Try again... without the appid
-          if (makeAssertionOptions.publicKey.extensions && makeAssertionOptions.publicKey.extensions.appid) {
-            delete makeAssertionOptions.publicKey.extensions['appid'];
-            navigator.credentials.get({
-              publicKey: makeAssertionOptions.publicKey
-            })
-              .then((credential) => {
-                verifyAssertion(credential);
-              }).catch((err) => {
-                webAuthnError('general', err.message);
-              });
-            return;
-          }
-          webAuthnError('general', err.message);
-        });
-    }).fail(() => {
-      webAuthnError('unknown');
+  const res = await fetch(`${appSubUrl}/user/webauthn/assertion`);
+  if (res.status !== 200) {
+    webAuthnError('unknown');
+    return;
+  }
+  const options = await res.json();
+  options.publicKey.challenge = decodeURLEncodedBase64(options.publicKey.challenge);
+  for (const cred of options.publicKey.allowCredentials) {
+    cred.id = decodeURLEncodedBase64(cred.id);
+  }
+  const credential = await navigator.credentials.get({
+    publicKey: options.publicKey
+  });
+  try {
+    await verifyAssertion(credential);
+  } catch (err) {
+    if (!options.publicKey.extensions?.appid) {
+      webAuthnError('general', err.message);
+      return;
+    }
+    delete options.publicKey.extensions.appid;
+    const credential = await navigator.credentials.get({
+      publicKey: options.publicKey
     });
+    try {
+      await verifyAssertion(credential);
+    } catch (err) {
+      webAuthnError('general', err.message);
+    }
+  }
 }
 
-function verifyAssertion(assertedCredential) {
+async function verifyAssertion(assertedCredential) {
   // Move data into Arrays incase it is super long
   const authData = new Uint8Array(assertedCredential.response.authenticatorData);
   const clientDataJSON = new Uint8Array(assertedCredential.response.clientDataJSON);
   const rawId = new Uint8Array(assertedCredential.rawId);
   const sig = new Uint8Array(assertedCredential.response.signature);
   const userHandle = new Uint8Array(assertedCredential.response.userHandle);
-  $.ajax({
-    url: `${appSubUrl}/user/webauthn/assertion`,
-    type: 'POST',
-    data: JSON.stringify({
+
+  const res = await fetch(`${appSubUrl}/user/webauthn/assertion`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json; charset=utf-8'
+    },
+    body: JSON.stringify({
       id: assertedCredential.id,
       rawId: encodeURLEncodedBase64(rawId),
       type: assertedCredential.type,
@@ -67,50 +72,31 @@ function verifyAssertion(assertedCredential) {
         userHandle: encodeURLEncodedBase64(userHandle),
       },
     }),
-    contentType: 'application/json; charset=utf-8',
-    dataType: 'json',
-    success: (resp) => {
-      if (resp && resp['redirect']) {
-        window.location.href = resp['redirect'];
-      } else {
-        window.location.href = '/';
-      }
-    },
-    error: (xhr) => {
-      if (xhr.status === 500) {
-        webAuthnError('unknown');
-        return;
-      }
-      webAuthnError('unable-to-process');
-    }
   });
+  if (res.status === 500) {
+    webAuthnError('unknown');
+    return;
+  } else if (res.status !== 200) {
+    webAuthnError('unable-to-process');
+    return;
+  }
+  const reply = await res.json();
+
+  window.location.href = reply?.redirect ?? `${appSubUrl}/`;
 }
 
-// Encode an ArrayBuffer into a URLEncoded base64 string.
-function encodeURLEncodedBase64(value) {
-  return encode(value)
-    .replace(/\+/g, '-')
-    .replace(/\//g, '_')
-    .replace(/=/g, '');
-}
-
-// Dccode a URLEncoded base64 to an ArrayBuffer string.
-function decodeURLEncodedBase64(value) {
-  return decode(value
-    .replace(/_/g, '/')
-    .replace(/-/g, '+'));
-}
-
-function webauthnRegistered(newCredential) {
+async function webauthnRegistered(newCredential) {
   const attestationObject = new Uint8Array(newCredential.response.attestationObject);
   const clientDataJSON = new Uint8Array(newCredential.response.clientDataJSON);
   const rawId = new Uint8Array(newCredential.rawId);
 
-  return $.ajax({
-    url: `${appSubUrl}/user/settings/security/webauthn/register`,
-    type: 'POST',
-    headers: {'X-Csrf-Token': csrfToken},
-    data: JSON.stringify({
+  const res = await fetch(`${appSubUrl}/user/settings/security/webauthn/register`, {
+    method: 'POST',
+    headers: {
+      'X-Csrf-Token': csrfToken,
+      'Content-Type': 'application/json; charset=utf-8',
+    },
+    body: JSON.stringify({
       id: newCredential.id,
       rawId: encodeURLEncodedBase64(rawId),
       type: newCredential.type,
@@ -119,48 +105,47 @@ function webauthnRegistered(newCredential) {
         clientDataJSON: encodeURLEncodedBase64(clientDataJSON),
       },
     }),
-    dataType: 'json',
-    contentType: 'application/json; charset=utf-8',
-  }).then(() => {
-    window.location.reload();
-  }).fail((xhr) => {
-    if (xhr.status === 409) {
-      webAuthnError('duplicated');
-      return;
-    }
-    webAuthnError('unknown');
   });
+
+  if (res.status === 409) {
+    webAuthnError('duplicated');
+    return;
+  } else if (res.status !== 201) {
+    webAuthnError('unknown');
+    return;
+  }
+
+  window.location.reload();
 }
 
 function webAuthnError(errorType, message) {
-  hideElem($('#webauthn-error [data-webauthn-error-msg]'));
-  const $errorGeneral = $(`#webauthn-error [data-webauthn-error-msg=general]`);
+  const elErrorMsg = document.getElementById(`webauthn-error-msg`);
+
   if (errorType === 'general') {
-    showElem($errorGeneral);
-    $errorGeneral.text(message || 'unknown error');
+    elErrorMsg.textContent = message || 'unknown error';
   } else {
-    const $errorTyped = $(`#webauthn-error [data-webauthn-error-msg=${errorType}]`);
-    if ($errorTyped.length) {
-      showElem($errorTyped);
+    const elTypedError = document.querySelector(`#webauthn-error [data-webauthn-error-msg=${errorType}]`);
+    if (elTypedError) {
+      elErrorMsg.textContent = `${elTypedError.textContent}${message ? ` ${message}` : ''}`;
     } else {
-      showElem($errorGeneral);
-      $errorGeneral.text(`unknown error type: ${errorType}`);
+      elErrorMsg.textContent = `unknown error type: ${errorType}${message ? ` ${message}` : ''}`;
     }
   }
-  $('#webauthn-error').modal('show');
+
+  showElem('#webauthn-error');
 }
 
 function detectWebAuthnSupport() {
   if (!window.isSecureContext) {
-    $('#register-button').prop('disabled', true);
-    $('#login-button').prop('disabled', true);
+    document.getElementById('register-button').disabled = true;
+    document.getElementById('login-button').disabled = true;
     webAuthnError('insecure');
     return false;
   }
 
   if (typeof window.PublicKeyCredential !== 'function') {
-    $('#register-button').prop('disabled', true);
-    $('#login-button').prop('disabled', true);
+    document.getElementById('register-button').disabled = true;
+    document.getElementById('login-button').disabled = true;
     webAuthnError('browser');
     return false;
   }
@@ -169,12 +154,14 @@ function detectWebAuthnSupport() {
 }
 
 export function initUserAuthWebAuthnRegister() {
-  if ($('#register-webauthn').length === 0) {
+  const elRegister = document.getElementById('register-webauthn');
+  if (!elRegister) {
     return;
   }
 
-  $('#webauthn-error').modal({allowMultiple: false});
-  $('#register-webauthn').on('click', (e) => {
+  hideElem('#webauthn-error');
+
+  elRegister.addEventListener('click', (e) => {
     e.preventDefault();
     if (!detectWebAuthnSupport()) {
       return;
@@ -183,40 +170,48 @@ export function initUserAuthWebAuthnRegister() {
   });
 }
 
-function webAuthnRegisterRequest() {
-  if ($('#nickname').val() === '') {
-    webAuthnError('empty');
+async function webAuthnRegisterRequest() {
+  const elNickname = document.getElementById('nickname');
+
+  const body = new FormData();
+  body.append('name', elNickname.value);
+
+  const res = await fetch(`${appSubUrl}/user/settings/security/webauthn/request_register`, {
+    method: 'POST',
+    headers: {
+      'X-Csrf-Token': csrfToken,
+    },
+    body,
+  });
+
+  if (res.status === 409) {
+    webAuthnError('duplicated');
+    return;
+  } else if (res.status !== 200) {
+    webAuthnError('unknown');
     return;
   }
-  $.post(`${appSubUrl}/user/settings/security/webauthn/request_register`, {
-    _csrf: csrfToken,
-    name: $('#nickname').val(),
-  }).done((makeCredentialOptions) => {
-    $('#nickname').closest('div.field').removeClass('error');
 
-    makeCredentialOptions.publicKey.challenge = decodeURLEncodedBase64(makeCredentialOptions.publicKey.challenge);
-    makeCredentialOptions.publicKey.user.id = decodeURLEncodedBase64(makeCredentialOptions.publicKey.user.id);
-    if (makeCredentialOptions.publicKey.excludeCredentials) {
-      for (let i = 0; i < makeCredentialOptions.publicKey.excludeCredentials.length; i++) {
-        makeCredentialOptions.publicKey.excludeCredentials[i].id = decodeURLEncodedBase64(makeCredentialOptions.publicKey.excludeCredentials[i].id);
-      }
-    }
+  const options = await res.json();
+  elNickname.closest('div.field').classList.remove('error');
 
-    navigator.credentials.create({
-      publicKey: makeCredentialOptions.publicKey
-    }).then(webauthnRegistered)
-      .catch((err) => {
-        if (!err) {
-          webAuthnError('unknown');
-          return;
-        }
-        webAuthnError('general', err.message);
-      });
-  }).fail((xhr) => {
-    if (xhr.status === 409) {
-      webAuthnError('duplicated');
-      return;
+  options.publicKey.challenge = decodeURLEncodedBase64(options.publicKey.challenge);
+  options.publicKey.user.id = decodeURLEncodedBase64(options.publicKey.user.id);
+  if (options.publicKey.excludeCredentials) {
+    for (const cred of options.publicKey.excludeCredentials) {
+      cred.id = decodeURLEncodedBase64(cred.id);
     }
-    webAuthnError('unknown');
-  });
+  }
+
+  let credential;
+  try {
+    credential = await navigator.credentials.create({
+      publicKey: options.publicKey
+    });
+  } catch (err) {
+    webAuthnError('unknown', err);
+    return;
+  }
+
+  webauthnRegistered(credential);
 }
diff --git a/web_src/js/utils.js b/web_src/js/utils.js
index 6bee4f0836..4f9ad452f6 100644
--- a/web_src/js/utils.js
+++ b/web_src/js/utils.js
@@ -1,3 +1,5 @@
+import {encode, decode} from 'uint8-to-base64';
+
 // transform /path/to/file.ext to file.ext
 export function basename(path = '') {
   return path ? path.replace(/^.*\//, '') : '';
@@ -135,3 +137,17 @@ export function toAbsoluteUrl(url) {
   return `${window.location.origin}${url}`;
 }
 
+// Encode an ArrayBuffer into a URLEncoded base64 string.
+export function encodeURLEncodedBase64(arrayBuffer) {
+  return encode(arrayBuffer)
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_')
+    .replace(/=/g, '');
+}
+
+// Decode a URLEncoded base64 to an ArrayBuffer string.
+export function decodeURLEncodedBase64(base64url) {
+  return decode(base64url
+    .replace(/_/g, '/')
+    .replace(/-/g, '+'));
+}
diff --git a/web_src/js/utils.test.js b/web_src/js/utils.test.js
index 2f9e5fb47d..cf73b63b99 100644
--- a/web_src/js/utils.test.js
+++ b/web_src/js/utils.test.js
@@ -2,7 +2,7 @@ import {expect, test} from 'vitest';
 import {
   basename, extname, isObject, stripTags, joinPaths, parseIssueHref,
   parseUrl, translateMonth, translateDay, blobToDataURI,
-  toAbsoluteUrl,
+  toAbsoluteUrl, encodeURLEncodedBase64, decodeURLEncodedBase64,
 } from './utils.js';
 
 test('basename', () => {
@@ -132,3 +132,9 @@ test('toAbsoluteUrl', () => {
 
   expect(() => toAbsoluteUrl('path')).toThrowError('unsupported');
 });
+
+test('encodeURLEncodedBase64, decodeURLEncodedBase64', () => {
+  expect(encodeURLEncodedBase64(decodeURLEncodedBase64('foo'))).toEqual('foo'); // No = padding
+  expect(encodeURLEncodedBase64(decodeURLEncodedBase64('a-minus'))).toEqual('a-minus');
+  expect(encodeURLEncodedBase64(decodeURLEncodedBase64('_underscorc'))).toEqual('_underscorc');
+});