Twill Brain

#143 Browser CORS access issue for 500 errors in back-end

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#143 — Browser CORS access issue for 500 errors in back-end

Repo: Twill-AI/facade State: closed | Status: done Assignee: Unassigned

Created: 2024-10-15 · Updated: 2025-09-15

Description

STR:

  • In any environment make from UI request which would cause 500 error in back-end

Expected: 500 error with details.

Actual: request fails with CORS error.

Investigation details:

See https://stackoverflow.com/questions/74032863/all-server-errors-appear-as-500-cors-error-fast-api-in-docker-image - it is a known problem. Particularly in FastAPI it may be solved with custom middlewares - https://github.com/fastapi/fastapi/discussions/7847

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