Replace vite preview with proper HTTP server#5
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Problem
The frontend service was returning 502 Bad Gateway because
vite preview(invoked vianpm run preview) is not designed for production use and was crashing immediately without output, failing to bind to thePORTenvironment variable reliably.Solution
Added
frontend/server.js, a zero-dependency Node.js HTTP server that serves the builtdistfolder, readsPORTfrom the environment (defaulting to 5173), binds to0.0.0.0, and falls back toindex.htmlfor any unmatched path to support client-side routing. Updated the DockerfileCMDfromnpm run previewtonode server.js.Changes
frontend/server.jsfrontend/DockerfileGenerated by Railway