fix: add SPA fallback for client-side routing#13
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lewisjared merged 1 commit intomainfrom Mar 6, 2026
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Replace StaticFiles with SPAStaticFiles that falls back to index.html when a requested path doesn't match a real static file. This enables client-side routing (e.g. /diagnostics?view=cards) to work correctly when served from the FastAPI backend, matching the behavior of Netlify's redirect-to-index.html pattern.
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Summary
SPAStaticFilesclass that extends Starlette'sStaticFilesto support SPA fallback routingindex.htmlinstead of returning 404/diagnostics?view=cards) to work correctly when served from the FastAPI backendThis matches the behavior of Netlify's
/* /index.html 200redirect rule. API routes under/api/v1/are unaffected since they are registered before the static mount.Test plan
/diagnostics?view=cardsand verify the frontend app loads/api/v1/*) still respond normally/still servesindex.html