INNER CODE UNIT · Python

_expand_port_matrix

skygazer42/MimirQ · app/main.py:114

def _expand_port_matrix(expanded: set[str], schemes: set[str], ports: set[int]) -> None:
    for scheme in sorted(schemes):
        for port in sorted(ports | _DEV_LOCAL_CORS_PORTS):
            for host in sorted(_LOCAL_DEV_HOSTS):
                expanded.add(f"{scheme}://{host}:{port}")


def _expand_dev_cors_origins(origins: list[str]) -> list[str]:
    """
    Dev-friendly CORS: add localhost/IP aliases for local FE ports.

    This prevents common UX issues when the frontend is opened via:
    - http://0.0.0.0:3000 (Next dev prints this by default)
    - http://127.0.0.1:3000
    - http://127.0.0.1:3100 (Playwright local prod-server checks)
    while backend env only allows http://localhost:3000.
    """
    if not origins:

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