CONNECT
The HTTP CONNECT method starts two-way communications
with the requested resource. It can be used to open a tunnel.
For example, the CONNECT method can be used to access websites that use
TLS (HTTPS). The client asks an HTTP Proxy server
to tunnel the TCP connection to
the desired destination. The proxy server then proceeds to make the connection on behalf of
the client. Once the connection is established, the
proxy server continues to relay the TCP stream to and
from the client.
CONNECT is a hop-by-hop method.
| Request has body | No |
|---|---|
| Successful response has body | No |
| Safe | No |
| Idempotent | No |
| Cacheable | No |
| Allowed in HTML forms | No |
Syntax
http
CONNECT www.example.com:443 HTTP/1.1
Example
Some proxy servers might need authority to create a tunnel. See also the
Proxy-Authorization header.
http
CONNECT server.example.com:80 HTTP/1.1
Host: server.example.com:80
Proxy-Authorization: basic aGVsbG86d29ybGQ=
Specifications
| Specification |
|---|
| HTTP Semantics # CONNECT |
Browser compatibility
BCD tables only load in the browser