Method parse_header_name

django/http/request.py:540–545

(cls, header)

    @classmethod
    def parse_header_name(cls, header):
        if header.startswith(cls.HTTP_PREFIX):
            header = header.removeprefix(cls.HTTP_PREFIX)
        elif header not in cls.UNPREFIXED_HEADERS:
            return None
        return header.replace("_", "-").title()

    @classmethod
    def to_wsgi_name(cls, header):