    GET http://localhost:8000/default-headers
    HTTP 200

    GET http://localhost:8000/default-headers
    User-Agent: hurl/1.0
    Host: localhost:8000  # Comment
    HTTP 200

    GET http://localhost:8000/default-headers
    User-Agent: hurl/1.0
    Host: localhost:8000  # Comment
    HTTP 200

    GET http://localhost:8000/custom-headers
    Fruit: Raspberry
    Fruit: Apple
    Fruit: Banana
    Fruit: Grape
    Color: Green
    HTTP 200

    GET http://localhost:8000/custom-headers
    # Headers name/value can use templates
    {{key}}: Raspberry
    {{key}}: Apple
    {{key}}: Banana
    {{key}}: {{foo}}
    Color: {{color}}
    [Options]
    variable: key=Fruit
    variable: color=Green
    variable: foo=Grape
    HTTP 200

    GET http://localhost:8000/custom-headers-utf8
    Beverage: café  # Send the utf8 string - expected to be decoded as ascii in the server side
    HTTP 200

    GET http://localhost:8000/custom-headers-value
    Id: \#123       # Send a hash in the value
    HTTP 200

    GET http://localhost:8000/custom-headers-quote
    Header1: '
    HTTP 200

    GET http://localhost:8000/response-headers
    HTTP 200
    Beverage: cafe  # TBC send utf8