http://fantom.org/doc/web/WebReq.html#headers

Says "The headers map is readonly and case sensitive", should be case insensitive.

fixed, thanks for reporting

not fixed: case insensitive does not appear.

I mean you have:

Map of HTTP request headers. The headers map is readonly and
case sensitive (see Map.caseInsensitive).

And it should be:

Map of HTTP request headers. The headers map is readonly
and case **in**sensitive (see Map.caseInsensitive).

The online docs are updated when a new build is posted, every few months. See http://fantom.org/sidewalk/blog/