[Webkit-unassigned] [Bug 63262] REGRESSION: EventSource fails to connect if Content-Type header has a charset attribute

Thu Jun 23 10:21:20 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=63262


--- Comment #2 from goberman at msn.com  2011-06-23 10:21:21 PST ---
SERVER:
package test;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class WebFrameworkServletEventSource extends HttpServlet {
    private SimpleDateFormat formatter = new SimpleDateFormat("hh:mm:ss");

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("Begin for session: " + request.getSession(true).getId() + " " + response.getWriter());

        response.setHeader("pragma", "no-cache,no-store");
        response.setHeader("cache-control", "no-cache,no-store,max-age=0,max-stale=0");
        response.setHeader("Connection", "close");

        response.setContentType("text/event-stream");

        PrintWriter out = response.getWriter();

        int messagesSent = 0;
        while (true) {
            out.print("data: ");
            out.print("{\"m\":8448,\"r\":0,\"e\":1,\"s\":[\"BAC.\",0],\"f\":[[0,6,3993,2],[55,6,1185,2],[54,6,3218,2],[5,6,6617,2],[52,4,15],[12,6,1700,2]]}");
            out.print("\n\n");
            out.flush();

            messagesSent++;

            try {
                Thread.sleep(2000);
            } catch (InterruptedException e1) {
            }
        }
    }
}

CLIENT:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
    <title>test</title>
</head>
<body>
    <input type="button" value="TEST" onclick="test(); return false;" />

    <script type="text/javascript">
        var domElement;
        var messagesProcessed = 0;
        var eventSrc;

        function test() {
            domElement = document.getElementsByTagName('body')[0];

            debug('connect');

            try {
                eventSrc = new EventSource('http://{ADDRESS}/Test/Controller');
            }
            catch (e) {
                debug('exception');
            }

            eventSrc.onopen = function (event) {
                debug('open ' + event.type);
            };

            eventSrc.onerror = function (event) {
                debug('error ' + event.type);
            };

            eventSrc.onmessage = function (event) {
                var data = event.data;
                debug(event.type + ' ' + data);
            };
        }

        function debug(message) {
            var oText = document.createTextNode(message);
            var oDiv = document.createElement('div');
            oDiv.appendChild(oText);

            domElement.insertBefore(oDiv, domElement.hasChildNodes() ? domElement.childNodes[0] : null);
        }
    </script>

</body>
</html>


WEB.XML
<!DOCTYPE web-app 
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
  "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

  <servlet>
    <servlet-name>Controller</servlet-name>
    <servlet-class>test.WebFrameworkServletEventSource</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>Controller</servlet-name>
    <url-pattern>/Controller</url-pattern>
  </servlet-mapping>

</web-app>


WIRESHARK TRACE:
GET /Test/Controller HTTP/1.1

Host: 172.16.16.250

Connection: keep-alive

Referer: http://172.16.16.250/Test/web/StreamingEventSourceTest.html

Cache-Control: no-cache

User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.100 Safari/534.30

Accept: text/event-stream

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


HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Set-Cookie: JSESSIONID=BB8BAD8227976D3032225DEB90FE99BB; Path=/Test; HttpOnly

pragma: no-cache,no-store

cache-control: no-cache,no-store,max-age=0,max-stale=0

Connection: close

Content-Type: text/event-stream;charset=ISO-8859-1

Transfer-Encoding: chunked

Date: Thu, 23 Jun 2011 17:15:34 GMT


81

data: {"m":8448,"r":0,"e":1,"s":["BAC.",0],"f":[[0,6,3993,2],[55,6,1185,2],[54,6,3218,2],[5,6,6617,2],[52,4,15],[12,6,1700,2]]}


81

data: {"m":8448,"r":0,"e":1,"s":["BAC.",0],"f":[[0,6,3993,2],[55,6,1185,2],[54,6,3218,2],[5,6,6617,2],[52,4,15],[12,6,1700,2]]}

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