Fix: Bind Next.js to 0.0.0.0 instead of localhost#32
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BigSimmo
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Co-authored-by: Cursor <cursoragent@cursor.com>
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BigSimmo
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Jul 22, 2026
Co-authored-by: Cursor <cursoragent@cursor.com>
BigSimmo
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Jul 22, 2026
Co-authored-by: Cursor <cursoragent@cursor.com>
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Problem
The Next.js app was spawned with
--hostname localhost, binding it to 127.0.0.1 only. Railway's healthcheck probe connects from outside the container, so it could never reach the app, causing every deployment to fail.Solution
Changed the
--hostnameargument inscripts/dev-free-port.mjsfrom"localhost"to"0.0.0.0", so Next.js listens on all network interfaces. This allows Railway's healthcheck and external traffic to reach the app.Changes
scripts/dev-free-port.mjsGenerated by Railway