René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Error in production but not caught by linter via pnpm build","articleBody":"### Which project does this relate to?\n\nCreate Tanstack App\n\n### Describe the bug\n\nI discovered a bug because I was trying to figure out why my code was building and deplying without errors then upon visiting the deployed website getting the response back from the url in return.\n\n```\n{\n  \"error\": true,\n  \"url\": \"https://tanstack-start-deployment-bug.vercel.app/\",\n  \"statusCode\": 500,\n  \"statusMessage\": \"Server Error\",\n  \"message\": \"Server Error\"\n}\n```\n\nI made a repo to demonstrate the issue\n\nhttps://github.com/remusris/tanstack-start-deployment-bug\n\nbelow is the deployment url\n\nhttps://tanstack-start-deployment-bug.vercel.app/\n\nBasically if you export a const from the a route into some component this will trigger the error in deployment.  \n\nIf you look at the `ComponentWithImportedZod.tsx` file that is culprit of the issue\n\nhttps://github.com/remusris/tanstack-start-deployment-bug/blob/master/src/components/ComponentWithImportedZod.tsx\n\nIf this is non an error please let me know what I'm doing wrong. \n\n### Your Example Website or App\n\nhttps://tanstack-start-deployment-bug.vercel.app/\n\n### Steps to Reproduce the Bug or Issue\n\nExport a const from a file inside of routes into a component outside of routes.  In this case it was a zod schema for validating searchParams\n\n### Expected behavior\n\nThe user does not get any build errors or deployment errors but once the URL is live all you get in response is\n\n```\n{\n  \"error\": true,\n  \"url\": \"https://tanstack-start-deployment-bug.vercel.app/\",\n  \"statusCode\": 500,\n  \"statusMessage\": \"Server Error\",\n  \"message\": \"Server Error\"\n}\n```\n\nhttps://tanstack-start-deployment-bug.vercel.app/\n\n### Screenshots or Videos\n\nCheck out the url below\n\nhttps://tanstack-start-deployment-bug.vercel.app/\n\n### Platform\n\n\nGoogle Chrome | 140.0.7339.128 (Official Build) (64-bit) (cohort: Stable)\nRevision | 36aa3351631d175ee5346a1aaf74ef5d49abe308-refs/branch-heads/7339@{#1850}\nOS | Windows 11 Version 24H2 (Build 26100.6584)\n\n\n\n\n### Additional context\n\n_No response_","author":{"url":"https://github.com/remusris","@type":"Person","name":"remusris"},"datePublished":"2025-09-17T04:42:33Z","url":"https://github.com/TanStack/cli/issues/167"}