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Fix React rendering errors to show 404 page instead of Hey Fernie page #4140

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Fix React rendering errors to show 404 page instead of Hey Fernie page #4140

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54b8392
Fix React rendering errors to show 404 page instead of Hey Fernie page
devin-ai-integration[bot] Oct 16, 2025
2eaa557
Fix import order for biome lint
devin-ai-integration[bot] Oct 16, 2025
570fa4d
Add missing features to error boundary: analytics tracker and return …
devin-ai-integration[bot] Oct 16, 2025
4e789aa
Address Vercel Agent feedback: improve error boundary UX
devin-ai-integration[bot] Oct 16, 2025
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22 changes: 22 additions & 0 deletions packages/fern-docs/bundle/src/app/[host]/[domain]/error.tsx
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
"use client";

import GradientExclamation from "@fern-docs/components/GradientExclamation";
import { useEffect } from "react";

export default function ErrorBoundary({ error }: { error: Error & { digest?: string } }) {
useEffect(() => {
console.error(`[domain-error-boundary] ${JSON.stringify(error)}`);
}, [error]);

return (
<div className="flex h-[calc(100svh-var(--header-height)-6rem)] w-screen flex-col items-center justify-center gap-6">
<GradientExclamation />
<div className="flex flex-col text-center">
<h1>Page not found!</h1>
<p className="text-(color:--grayscale-a9)">
We&apos;re sorry, we couldn&apos;t find the page you were looking for.
</p>
</div>
</div>
);
}