{"slug": "streamlined-sign-in-immediate-ui-mode-is-now-available", "title": "Streamlined sign-in: Immediate UI mode is now available", "summary": "Chrome 149 has introduced Immediate UI mode for passkeys and passwords, a new web capability that streamlines user sign-in by allowing the browser to proactively offer saved credentials without redirecting to a separate login page. The feature provides a frictionless experience by instantly presenting available local credentials, with a seamless fallback if none are found, and requires developers to use the `uiMode: 'immediate'` field in the `navigator.credentials.get()` request instead of the previous `mediation: 'immediate'` parameter.", "body_md": "Published: May 12, 2026\nWe are excited to announce that Chrome 149 introduces Immediate UI mode for passkeys and passwords. This new web capability streamlines user sign-in flows by enabling a low-friction experience for your users. This feature has been on an origin trial as WebAuthn immediate mediation.\nWhat is Immediate UI mode?\nImmediate UI mode enables an immediate login experience. The browser mediates the flow using an immediate login dialog, allowing websites to proactively offer saved credentials directly to users at a sign-in moment, such as clicking a Sign In or Checkout button. This lets you prompt for a sign-in without redirecting to a separate login page or presenting a manual form. Chrome 149 supports passkeys and managed passwords.\nKey benefits include:\n- Frictionless experience: The browser instantly offers available credentials if it finds them locally.\n- Seamless fallback: If the browser finds no credentials, the API rejects the request silently. This allows your site to gracefully fall back to existing sign-in methods, such as email and password forms, phone number verification or social logins, without disrupting the user experience.\n- Reduced user confusion: By presenting known credentials directly, the feature minimizes the confusion that often accompanies having multiple sign-in options.\nImportant change from the Origin Trial\nIf you participated in the Origin Trial, note that the API has changed.\nmediation: 'immediate'\nno longer triggers the feature. Instead, developers\nmust now use the uiMode: 'immediate'\nfield in the\nnavigator.credentials.get()\nrequest.\nLearn more about Immediate UI mode\nIf you want to learn how to implement Immediate UI mode see Immediate UI mode for logins.\n- Follow for more developer updates at Chrome Developers blog\n- Start learning passkeys from Using passkeys on the web", "url": "https://wpnews.pro/news/streamlined-sign-in-immediate-ui-mode-is-now-available", "canonical_source": "https://developer.chrome.com/blog/webauthn-immediate-ui?hl=en", "published_at": "2026-05-12 07:00:00+00:00", "updated_at": "2026-05-24 05:08:46.259649+00:00", "lang": "en", "topics": ["products", "developer-tools"], "entities": ["Chrome 149", "WebAuthn"], "alternates": {"html": "https://wpnews.pro/news/streamlined-sign-in-immediate-ui-mode-is-now-available", "markdown": "https://wpnews.pro/news/streamlined-sign-in-immediate-ui-mode-is-now-available.md", "text": "https://wpnews.pro/news/streamlined-sign-in-immediate-ui-mode-is-now-available.txt", "jsonld": "https://wpnews.pro/news/streamlined-sign-in-immediate-ui-mode-is-now-available.jsonld"}}