In message <94Jul13.113547pdt.2760@golden.parc.xerox.com>, Larry Masinter writes:
>Since content-type: is optional on the return value from a HTTP GET,
>the spec should say what the default is. I propose that the spec say
>that the default is text/html. (The spec currently doesn't say, as far
>as I can tell). This corresponds closely to the original spirit of
>HTTP 0.9 (where everything was text/html), is the presumption of
>Mosaic, and could easily be of Lynx, and it's better to have a
>default.
>
>HTTP servers probably should try to include a content-type: text/html
>anyway, if that's what they mean.