Per the lists recommendation, this workaround looks for the two WS headers and works around the lack of content-length.

Log of a bad request

DEBUG src/connection.c:656: parsing
'GET /wsstream HTTP/1.1
Upgrade: WebSocket
Connection: Upgrade
Host: localhost:6767
Origin: http://localhost:6767
Sec-WebSocket-Key1: m  4  115S8  g8if  m  aLD T8 yd124
Sec-WebSocket-Key2: 9   %F8 s]6129'     ^ 3 C 76

t�C"���`'

DEBUG src/connection.c:658: parsed
'GET /wsstream HTTP/1.1
Upgrade: WebSocket
Connection: Upgrade
Host: localhost:6767
Origin: http://localhost:6767
Sec-WebSocket-Key1: m  4  115S8  g8if  m  aLD T8 yd124
Sec-WebSocket-Key2: 9   %F8 s]6129'     ^ 3 C 76

'

DEBUG src/state.rl:54: --> register_request(REQ_RECV:110) State_exec:54 
DEBUG src/connection.c:475: HTTP MESSAGE
DEBUG src/state.rl:57: --> route_request(HTTP_REQ:105) State_exec:57 
DEBUG src/server.c:221: Looking for target host: localhost
DEBUG src/routing.c:200: Found simple suffix: localhost
DEBUG src/routing.c:218: Found simple prefix: /wsstream
DEBUG src/host.c:127: Found backend at /wsstream
DEBUG src/state.rl:60: --> http_to_handler(HANDLER:104) State_exec:60 
DEBUG src/connection.c:231: READ ALL CALLED with content_len: 8, and MAX_CONTENT_LENGTH: 20480
DEBUG src/io.c:350: INITIAL READ: len: 8, nread: 8
DEBUG src/io.c:365: ATTEMPTS: 0, RETRIES: 5
DEBUG src/connection.c:169: HTTP TO HANDLER: 54c6755b-9628-40a4-9a2d-cc82a816345f 159 /wsstream 338:{"PATH":"/wsstream","host":"localhost:6767","sec-websocket-key1":"m  4  115S8  g8if  m  aLD T8 yd124","origin":"http://localhost:6767","x-forwarded-for":"127.0.0.1","upgrade":"WebSocket","connection":"Upgrade","sec-websocket-key2":"9   %F8 s]6129'     ^ 3 C 76","METHOD":"GET","VERSION":"HTTP/1.1","URI":"/wsstream","PATTERN":"/wsstream"},8:t

### BEEP BEEP see that malformed netstring at the end? What's up with that?

Log of a good request

DEBUG src/connection.c:656: parsing
'GET /wsstream HTTP/1.1
Upgrade: WebSocket
Connection: Upgrade
Host: localhost:6767
Origin: http://localhost:6767
Sec-WebSocket-Key1: 2 7419 11 v8 0  0
Sec-WebSocket-Key2: 33 P  48Z}6Q9^42.O S}h8

�B}���'

DEBUG src/connection.c:658: parsed
'GET /wsstream HTTP/1.1
Upgrade: WebSocket
Connection: Upgrade
Host: localhost:6767
Origin: http://localhost:6767
Sec-WebSocket-Key1: 2 7419 11 v8 0  0
Sec-WebSocket-Key2: 33 P  48Z}6Q9^42.O S}h8

'

DEBUG src/state.rl:54: --> register_request(REQ_RECV:110) State_exec:54 
DEBUG src/connection.c:475: HTTP MESSAGE
DEBUG src/state.rl:57: --> route_request(HTTP_REQ:105) State_exec:57 
DEBUG src/server.c:221: Looking for target host: localhost
DEBUG src/routing.c:200: Found simple suffix: localhost
DEBUG src/routing.c:218: Found simple prefix: /wsstream
DEBUG src/host.c:127: Found backend at /wsstream
DEBUG src/state.rl:60: --> http_to_handler(HANDLER:104) State_exec:60 
DEBUG src/connection.c:231: READ ALL CALLED with content_len: 8, and MAX_CONTENT_LENGTH: 20480
DEBUG src/io.c:350: INITIAL READ: len: 8, nread: 8
DEBUG src/io.c:365: ATTEMPTS: 0, RETRIES: 5
DEBUG src/connection.c:169: HTTP TO HANDLER: 54c6755b-9628-40a4-9a2d-cc82a816345f 79 /wsstream 316:{"PATH":"/wsstream","host":"localhost:6767","sec-websocket-key1":"2 7419 11 v8 0  0","origin":"http://localhost:6767","x-forwarded-for":"127.0.0.1","upgrade":"WebSocket","connection":"Upgrade","sec-websocket-key2":"33 P  48Z}6Q9^42.O S}h8","METHOD":"GET","VERSION":"HTTP/1.1","URI":"/wsstream","PATTERN":"/wsstream"},8:�
DEBUG src/connection.c:242: REQ_SENT to handler!
DEBUG src/state.rl:53: --> parse(REQ_SENT:111) State_exec:53 
DEBUG src/connection.c:656: parsing
'GET /favicon.ico HTTP/1.1
Host: localhost:6767
Connection: keep-alive
Accept: */*
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US) AppleWebKit/534.16 (KHTML, like Gecko) Chrome/10.0.648.45 Safari/534.16
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3

'

DEBUG src/connection.c:658: parsed
'GET /favicon.ico HTTP/1.1
Host: localhost:6767
Connection: keep-alive
Accept: */*
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US) AppleWebKit/534.16 (KHTML, like Gecko) Chrome/10.0.648.45 Safari/534.16
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3

'
### Umm, so this situation was good when checked against my handler. Maybe that's the problem...

new_connection_http_to_handler

static struct tagbstring UPGRADE = bsStatic("upgrade");
static struct tagbstring CONNECTION = bsStatic("connection");

int connection_http_to_handler(Connection *conn)
{
    int content_len = Request_content_length(conn->req);
    int rc = 0;
    char *body = NULL;

    Handler *handler = Request_get_action(conn->req, handler);
    error_unless(handler, conn, 404, "No action for request: %s", bdata(Request_path(conn->req)));

    // we don't need the header anymore, so commit the buffer and deal with the body
    IOBuf_read_commit(conn->iob, Request_header_length(conn->req));

    // WebSocket work around
    // Problem: Sometimes avail returns 8 but when the message goes to
    // the handler it's malformed.
    // Ex: the body netstring looks like: '8:t' and misses those last 7 bytes!
    bstring upgrade = Request_get(conn->req, (bstring)&UPGRADE);
    bstring connection = Request_get(conn->req, (bstring)&CONNECTION);
    if(upgrade != NULL && connection != NULL){
        int avail = IOBuf_avail(conn->iob);
        if(avail != 8){
            debug("Purported websocket but body does not have 8 bytes");
            goto error;
        }
        /*
        int outlen;
        debug("Bytes available: %d",avail);
        char* data = IOBuf_read(conn->iob,avail,&outlen);
        debug("Bytes read: %d\nThe bytes:\n'%s'\n", outlen, data);
        */
        content_len = avail;
    } else {
        debug("Not a websocket.");
    }

    if(content_len == 0) {
        body = "";
        rc = Connection_send_to_handler(conn, handler, body, content_len);
        check_debug(rc == 0, "Failed to deliver to the handler.");
    } else if(content_len > MAX_CONTENT_LENGTH) {
        rc = Upload_file(conn, handler, content_len);
        check(rc == 0, "Failed to upload file.");
    } else {
        if(content_len > conn->iob->len) {
            // temporarily grow the buffer
            IOBuf_resize(conn->iob, content_len);
        }

        debug("READ ALL CALLED with content_len: %d, and MAX_CONTENT_LENGTH: %d", content_len, MAX_CONTENT_LENGTH);

        body = IOBuf_read_all(conn->iob, content_len, CLIENT_READ_RETRIES);
        check(body != NULL, "Client closed the connection during upload.");

        rc = Connection_send_to_handler(conn, handler, body, content_len);
        check_debug(rc == 0, "Failed to deliver to the handler.");
    }

    Log_request(conn, 200, content_len);

    debug("REQ_SENT to handler!");

    return REQ_SENT;

error:
    return CLOSE;
}