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From "Alex Dean (JIRA)" <>
Subject [jira] Created: (AMQ-2948) Support ajax clients in multiple windows/tabs in a single browser
Date Tue, 28 Sep 2010 17:23:40 GMT
Support ajax clients in multiple windows/tabs in a single browser

                 Key: AMQ-2948
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 5.4.1
         Environment: OSX 10.6
Centos 5.4
            Reporter: Alex Dean
         Attachments: support-multiple-ajax-clients-per-session.patch

In current ajax code, there is a 1-1 relationship between ajax client and session.  Since
multiple windows in the same browser share the same session, it's impossible for the ajax
code to update both windows.  Either 1 or the other will receive messages, but not both.

The attached patch allows an optional 'clientId' string to be passed to the JavaScript amq.init()
function, similar to that supported by the REST servlet.  This clientId string is sent to
the server with every ajax request.  In MessageListenerServlet, a new consumer is created
for every new sessionid+clientId, allowing multiple windows in the same browser to send &
receive messages independently.

For some (currently) unknown reason, IE7 cannot send messages from multiple windows.  2 IE7
windows can receive messages independently with no errors, but once either IE7 window sends
a message, both windows cease receiving data.  This behavior is not seen in FF (OSX or WinXP)
or Safari (OSX).  All those browsers are able to send & receive simultaneously in multiple
windows with no errors.

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