url-http-version

url-http-version is a variable defined in `url-http.el'.
Its value is

"1.1"

Documentation:
What version of HTTP we advertise, as a string.
Valid values are 1.1 and 1.0.
This is only useful when debugging the HTTP subsystem.

Setting this to 1.0 will tell servers not to send chunked encoding,
and other HTTP/1.1 specific features.