@maschinenlesbar.org/pegel-online-cli
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    Variable baseUrlWhitespaceProblemConst

    baseUrlWhitespaceProblem: Problem<unknown> = ...

    Whitespace and control characters in a base URL. new URL() silently trims surrounding whitespace and strips an interior tab or newline, so the URL checks pass, but the engine concatenates request paths onto the raw string: "https://h/ " would request /%20/webservices/..., and a custom transport would get the raw padded value.