Expect: 100-Continue support #349
Description
Some clients, such as curl, use this mechanism by default.
It would be nice to be able to acknowledge or reject request body before reading it.
Sending a file via curl now causes a delay of 1 second due to a timeout waiting for 100 Continue.
$ time curl -v -XPOST 'http://localhost:8003/' -F 'file=@testfile'
* About to connect() to localhost port 8003 (#0)
* Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 8003 (#0)
> POST / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: localhost:8003
> Accept: */*
> Content-Length: 200
> Expect: 100-continue
> Content-Type: multipart/form-data; boundary=----------------------------1a479a81f757
>
* Done waiting for 100-continue
< HTTP/1.1 404 Not Found
< Accept-Ranges: bytes
< Content-Length: 0
< Content-Type: text/plain
* HTTP error before end of send, stop sending
<
* Closing connection 0
real 0m1.015s
user 0m0.005s
sys 0m0.005s