[docs] Fix broken social preview image on shared docs links#23055
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The docs `AppLayoutHead` builds `og:url`, `og:image`, and `twitter:image` by interpolating `hostUrl` from the docs config. `DOCS_CONFIG` spread `DEFAULT_DOCS_CONFIG` without setting `hostUrl`, so the value was `undefined` and every social meta tag resolved to `undefined/edge-functions/og-image?...`, which social platforms could not load. Set `hostUrl` to `https://mui.com`. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_012auoswyk6M4Ji3R5y4U8U3
sai6855
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type: bug
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Pull request overview
This PR updates the MUI X documentation app configuration to ensure canonical and social preview meta URLs (notably og:url and og:image) are generated with an absolute origin, preventing broken previews when docs links are shared.
Changes:
- Add
hostUrl: 'https://mui.com'toDOCS_CONFIGin the docs custom app to set an explicit absolute origin for URL generation.
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sai6855
marked this pull request as ready for review
July 4, 2026 03:20
brijeshb42
approved these changes
Jul 6, 2026
brijeshb42
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Nice catch. Does this need fixing in core repo as well ?
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Don't think so, I can see social preview for material-ui. 
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Added
hostUrl: 'https://mui.com'toDOCS_CONFIGindocs/pages/_app.tsxto specify the absolute origin for canonical and social-preview URLs (og:url, og:image).Before and after