Working Around Buggy SSL Implementations

SetEnvIf User-Agent ".*MSIE.*" nokeepalive \     ssl-unclean-shutdown downgrade-1.0 \ force-response-1.0

Some browsers (or servers, if operating in a reverse-proxy configuration) have known problems with specific versions of the SSL protocol or certain features. Certain environment variables can be set to force specific behaviors. This is especially useful if you have a commercial site and need to support older browsers. For example, this configuration snippet is included in the default configuration file and is a workaround for bugs in the SSL implementation of Internet Explorer browsers. If the client browser contains the MSIE string then no keep-alive support will be enabled and an earlier version of the HTTP protocol will be used.