HTTP_PROXY_CONNECTION Htaccess Variable - Htaccess File

MM56/labase/master/dist/tests/htaccess/.htaccess

API_VERSION, AUTH_TYPE, CONTENT_LENGTH, CONTENT_TYPE, DOCUMENT_ROOT, GATEWAY_INTERFACE, HTTP_ACCEPT, HTTP_CACHE_CONTROL, HTTP_CONNECTION, HTTP_COOKIE, HTTP_FORWARDED, HTTP_HOST, HTTP_KEEP_ALIVE, HTTP_PROXY_CONNECTION, HTTP_REFERER, HTTP_USER_AGENT, HTTPS, IS_SUBREQ, ORIG_PATH_INFO, ORIG_PATH_TRANSLATED, ORIG_SCRIPT_FILENAME, ORIG_SCRIPT_NAME, PATH_INFO, PHP_SELF, QUERY_STRING, REDIRECT_QUERY_STRING, REDIRECT_REMOTE_USER, REDIRECT_STATUS, REDIRECT_URL, REMOTE_ADDR, REMOTE_HOST, REMOTE_IDENT, REMOTE_PORT, REMOTE_USER, REQUEST_FILENAME, REQUEST_METHOD, REQUEST_TIME, REQUEST_URI, SCRIPT_FILENAME, SCRIPT_GROUP, SCRIPT_NAME, SCRIPT_URI, SCRIPT_URL, SCRIPT_USER, SERVER_ADDR, SERVER_ADMIN, SERVER_NAME, SERVER_PORT, SERVER_PROTOCOL, SERVER_SIGNATURE, SERVER_SOFTWARE, THE_REQUEST, TIME, TZ, UNIQUE_ID

bborrel/apache-variables-viewer/master/.htaccess

API_VERSION, AUTH_TYPE, CONTENT_LENGTH, CONTENT_TYPE, DOCUMENT_ROOT, GATEWAY_INTERFACE, HTTP_ACCEPT, HTTP_CACHE_CONTROL, HTTP_CONNECTION, HTTP_COOKIE, HTTP_FORWARDED, HTTP_HOST, HTTP_KEEP_ALIVE, HTTP_PROXY_CONNECTION, HTTP_REFERER, HTTP_USER_AGENT, HTTPS, IS_SUBREQ, ORIG_PATH_INFO, ORIG_PATH_TRANSLATED, ORIG_SCRIPT_FILENAME, ORIG_SCRIPT_NAME, PATH_INFO, PHP_SELF, QUERY_STRING, REDIRECT_QUERY_STRING, REDIRECT_REMOTE_USER, REDIRECT_STATUS, REDIRECT_URL, REMOTE_ADDR, REMOTE_HOST, REMOTE_IDENT, REMOTE_PORT, REMOTE_USER, REQUEST_FILENAME, REQUEST_METHOD, REQUEST_TIME, REQUEST_URI, SCRIPT_FILENAME, SCRIPT_GROUP, SCRIPT_NAME, SCRIPT_URI, SCRIPT_URL, SCRIPT_USER, SERVER_ADDR, SERVER_ADMIN, SERVER_NAME, SERVER_PORT, SERVER_PROTOCOL, SERVER_SIGNATURE, SERVER_SOFTWARE, THE_REQUEST, TIME, TZ, UNIQUE_ID

Apache