force-response-1.0
This forces an HTTP/1.0 response to clients making an HTTP/1.0 request. It was originally implemented as a result of a problem with AOL's proxies. Some HTTP/1.0 clients may not behave correctly when given an HTTP/1.1 response, and this can be used to interoperate with them.
wgetは1.13.3以降でHTTP/1.1対応
** Support HTTP/1.1
https://lists.gnu.org/archive/html/info-gnu/2011-08/msg00018.html
HTTP/1.0版のwgetは、ApacheからのHTTP/1.1応答を
正しく処理できないことがあるのでforce-response-1.0を設定する
BrowserMatch ^Wget/1\.1[0-2] force-response-1.0