fix(auth): fall back to the manual form when the OIDC provider is unreachable - #9
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…eachable The automatic OIDC redirect fired authClient.oidc.signIn() without a .catch, so an unreachable IdP left users on the redirect spinner forever with no error, no retry, and no path to the break-glass form. Catch the rejection and re-render the manual form (retry button, ?direct=1 break-glass door) instead. Also port the synchronous embedded-hash guard from the signin route to the signup route so embedded signing widgets cannot bounce to the IdP from a crafted /signup URL.
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📝 WalkthroughWalkthroughThe sign-in and signup routes now catch failed OIDC redirects. They show the manual form after failure. The signup route also skips automatic redirects when the URL hash contains ChangesOIDC redirect handling
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix · Severity of issue fixed: Low Merge Risk: 🟡 Moderate · up to Embedded signup users remain stuck on the redirect spinner and cannot access the manual signup form. Fix this fallback state before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Code Review
This pull request introduces error handling for OIDC sign-in and sign-up flows by catching failures and falling back to manual forms instead of displaying an infinite spinner. It also adds a check in the sign-up flow to prevent automatic redirection in embedded contexts. The review feedback suggests improving the embedded context detection in the sign-up route by tracking isEmbeddedRedirect via state and a useEffect hook, and using this state to guard the spinner rendering, aligning its implementation with the sign-in route.
| const [searchParams] = useSearchParams(); | ||
| const [isRedirectFailed, setIsRedirectFailed] = useState(false); |
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To prevent users in embedded contexts from getting stuck on the spinner forever, we need to track whether the signup is embedded. Let's add the isEmbeddedRedirect state and its corresponding useEffect to detect the #embedded=true hash on mount, matching the implementation in signin.tsx.
| const [searchParams] = useSearchParams(); | |
| const [isRedirectFailed, setIsRedirectFailed] = useState(false); | |
| const [searchParams] = useSearchParams(); | |
| const [isRedirectFailed, setIsRedirectFailed] = useState(false); | |
| const [isEmbeddedRedirect, setIsEmbeddedRedirect] = useState(false); | |
| useEffect(() => { | |
| const hash = window.location.hash.slice(1); | |
| const params = new URLSearchParams(hash); | |
| setIsEmbeddedRedirect(params.get('embedded') === 'true'); | |
| }, []); |
| }, [shouldRedirectToOIDC, returnTo]); | ||
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| if (shouldRedirectToOIDC) { | ||
| if (shouldRedirectToOIDC && !isRedirectFailed) { |
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Since shouldRedirectToOIDC is not updated to include !isEmbeddedRedirect (as that line is outside the diff hunks), we should guard the spinner rendering here by checking !isEmbeddedRedirect. This ensures that if the signup is embedded, we immediately render the manual form instead of showing the infinite spinner.
| if (shouldRedirectToOIDC && !isRedirectFailed) { | |
| if (shouldRedirectToOIDC && !isRedirectFailed && !isEmbeddedRedirect) { |
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@apps/remix/app/routes/_unauthenticated`+/signup.tsx:
- Around line 98-100: Update the embedded-signup early-return branch in the
signup effect to set the fallback state that clears the redirect spinner before
returning. Preserve the existing redirect behavior for non-embedded signup
flows.
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apps/remix/app/routes/_unauthenticated+/signin.tsxapps/remix/app/routes/_unauthenticated+/signup.tsx
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Porting only the synchronous hash guard left the signup spinner branch reachable from a crafted /signup#embedded=true URL: signIn() was blocked but the spinner kept rendering with no way out. Track the embedded hash in state like the signin route so the manual form renders instead.
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What
Follow-up to PR #8 (redirect-only OIDC login), addressing the [major] finding from its post-merge review.
When the OIDC provider (id.dos.me) is unreachable, authClient.oidc.signIn() rejects and the rejection was unhandled, leaving users on the "Redirecting..." spinner forever with no error, no retry, and no path to the manual form. The break-glass door (?direct=1) worked but was unreachable behind the spinner.
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