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DOP-6282: Introduces the new 404 page w/ original req URL in the body #1575

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Merged
merged 7 commits into from
Oct 23, 2025
Merged

DOP-6282: Introduces the new 404 page w/ original req URL in the body #1575

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a2bb18e
DOP-6282 makes changes based on the latest design change and includes…
caesarbell Oct 20, 2025
82c596c
DOP-6282 a custom hook for grabbing the targeted cookie that is set f…
caesarbell Oct 20, 2025
2a65884
DOP-6282 changes cookie name to be more descriptive
caesarbell Oct 20, 2025
a878ed6
DOP-6282 handles decoding the url and uses body to auto include dark …
caesarbell Oct 22, 2025
93240a0
DOP-6282 increase line-height to 64px
caesarbell Oct 22, 2025
8c5df6a
DOP-6282 adds custom style to account for the whitepsace of the 404.p…
caesarbell Oct 22, 2025
f98d661
Merge branch 'main' into DOP-6282
caesarbell Oct 23, 2025
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24 changes: 24 additions & 0 deletions src/hooks/use-original-req-url.tsx
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Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
import { useEffect, useState } from 'react';
import { isBrowser } from '../utils/is-browser';

const parseCookies = () => window.document.cookie.split(';');

const getTargetedCookie = (cookies: string[]) => cookies.find((cookie) => cookie.trim().startsWith('originalRequest='));

export const useOriginalReqURL = () => {
const [originReqURL, setOriginalReqURL] = useState<string | null>(null);

useEffect(() => {
if (isBrowser) {
const cookies = parseCookies();
// the target is set in B2K
const targetCookie = getTargetedCookie(cookies);
const cookie = targetCookie?.split('=')[1];
if (cookie) {
setOriginalReqURL(cookie);
}
}
}, []);

return { originReqURL };
};
40 changes: 26 additions & 14 deletions src/templates/NotFound.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -6,14 +6,15 @@ import Button from '@leafygreen-ui/button';
import { palette } from '@leafygreen-ui/palette';
import { useDarkMode } from '@leafygreen-ui/leafygreen-provider';
import { Body } from '@leafygreen-ui/typography';
import { useOriginalReqURL } from '../hooks/use-original-req-url';
import { theme } from '../theme/docsTheme';
import { baseUrl } from '../utils/base-url';
import Link from '../components/Link';
import { BaseTemplateProps } from '.';

const ErrorBox = styled.div`
max-width: 455px;
flex: 1 0.5 auto;
word-break: break-word;

@media ${theme.screenSize.upToSmall} {
padding: 0px ${theme.size.default};
Expand All @@ -35,7 +36,8 @@ const getSupportLinkDynamicStyle = (darkMode: boolean) => css`
`;

const ImageContainer = styled.div`
max-width: 455px;
margin-left: -27px; /* to account for the whitespace of the image */
max-width: 226px;
display: flex;
justify-content: flex-start;
flex: 0.5 1 auto;
Expand All @@ -58,10 +60,10 @@ const NotFoundImage = () => {

const errorTitleStyling = css`
font-family: 'MongoDB Value Serif';
font-size: 32px;
line-height: 40px;
margin-block-start: 1em;
margin-block-end: 1em;
line-height: 64px;
font-size: 48px;
margin-block-start: 0em; /* to account for the whitespace of the image */
margin-block-end: 22px;

@media ${theme.screenSize.upToSmall} {
font-size: ${theme.fontSize.h2};
Expand All @@ -79,10 +81,22 @@ const LinkContainer = styled.div`

const ErrorBoxContainer = () => {
const { darkMode } = useDarkMode();
const { originReqURL } = useOriginalReqURL();
const decodedURL = originReqURL ? decodeURIComponent(originReqURL) : null;

return (
<ErrorBox>
<Body className={cx(errorTitleStyling)}>Sorry, we can't find that page.</Body>
<Body>The page might have been moved or deleted.</Body>
<Body as="h1" className={cx(errorTitleStyling)}>
Sorry, we can't find that page.
</Body>
{decodedURL ? (
<Body>
The page with the URL &quot;<Link to={decodedURL}>{decodedURL}</Link>&quot; does not exist. It might have been
moved or deleted.
</Body>
) : (
<Body>The page might have been moved or deleted.</Body>
)}
<LinkContainer>
<Button
href={baseUrl()}
Expand All @@ -108,10 +122,9 @@ const ErrorBoxContainer = () => {
};

export const NotFoundContainer = styled.div`
align-items: center;
align-items: flex-start;
display: flex;
flex-flow: no-wrap;
justify-content: space-between;
flex-direction: column;
margin-bottom: ${theme.size.xxlarge};

@media ${theme.screenSize.upToSmall} {
Expand All @@ -120,7 +133,6 @@ export const NotFoundContainer = styled.div`

@media ${theme.screenSize.upToMedium} {
grid-column: 2/-2;
flex-flow: column-reverse;
}

@media ${theme.screenSize.upToLarge} {
Expand All @@ -131,7 +143,7 @@ export const NotFoundContainer = styled.div`
grid-column: 4/-4;
}
@media ${theme.screenSize.xLargeAndUp} {
grid-column: 6/-5;
grid-column: 6/-3;
justify-content: start;
}
`;
Expand Down Expand Up @@ -163,8 +175,8 @@ const NotFound = (props: BaseTemplateProps) => {
return (
<Wrapper>
<NotFoundContainer>
<ErrorBoxContainer />
<NotFoundImage />
<ErrorBoxContainer />
</NotFoundContainer>
</Wrapper>
);
Expand Down