1 Long: http0.9 2 Tags: Versions 3 Protocols: HTTP 4 Added: 5 Help: Allow HTTP 0.9 responses 6 --- 7 Tells curl to be fine with HTTP version 0.9 response. 8 9 HTTP/0.9 is a completely headerless response and therefore you can also 10 connect with this to non-HTTP servers and still get a response since curl will 11 simply transparently downgrade - if allowed. 12 13 Since curl 7.66.0, HTTP/0.9 is disabled by default. 14