<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>webauthn — FixDevs</title><description>Latest fixes and solutions for webauthn errors on FixDevs.</description><link>https://fixdevs.com/</link><language>en</language><lastBuildDate>Wed, 20 May 2026 00:00:00 GMT</lastBuildDate><atom:link href="https://fixdevs.com/tags/webauthn/rss.xml" rel="self" type="application/rss+xml"/><item><title>Fix: Passkey / WebAuthn Not Working — rpId, Origin, Conditional UI, and Cross-Device Sign-In</title><link>https://fixdevs.com/blog/passkey-webauthn-not-working/</link><guid isPermaLink="true">https://fixdevs.com/blog/passkey-webauthn-not-working/</guid><description>How to fix passkey and WebAuthn errors — rpId mismatch, NotAllowedError, Conditional UI autofill not showing, attestation vs assertion, Safari userVerification quirks, and SimpleWebAuthn library integration.</description><pubDate>Wed, 20 May 2026 00:00:00 GMT</pubDate><category>webauthn</category><category>passkey</category><category>authentication</category><category>security</category><category>javascript</category><category>fido</category><author>FixDevs</author></item></channel></rss>