Re: [jetty-users] Persistent connections with Opera

[Mario Georgiev <mario@xxxxxxxxxxxxxx>]

Hi,
No, there is no proxies or other kind of intermediaries. The browser
connects directly to Jetty.
I made a servlet filter that adds "Connection: keep-alive" in the
response headers (after some debugging I saw that it already exists in
the response header) but that entry never shows up in any browser. I
did some code digging in the Jetty sources but I did not find where
that entry is removed.

On Fri, Nov 18, 2011 at 23:00, Simone Bordet <sbordet@xxxxxxxxxxx> wrote:
> Hi,
>
> On Thu, Nov 17, 2011 at 10:16, Mario Georgiev <mario@xxxxxxxxxxxxxx> wrote:
>> Hi to all,
>>
>> I have a problem with Jetty and Opera browser. The problem is that the
>> browser always creates new HTTP connections instead of using a
>> persistent one.
>> For all other browsers (Firefox, Chrome, IE) there is no problem when
>> they establish a connection and then using the same one to transfer
>> more data over it but Opera creates new ones for every resource it
>> wants from the server.
>> I see these mostly with CometD but also when loading images and other resources.
>> I think it have something to do with that Jetty doesn't responds with
>> "Connection: keep-alive".
>> After some search I found this
>> http://jira.codehaus.org/browse/JETTY-594 it explains that Jetty does
>> not send "Connection: keep-alive" in the response headers with HTTP
>> 1.1.
>> Can somebody tell me how to enable the "Connection: keep-alive"
>> response on HTTP 1.1?
>
> Well, if it is Opera that closes HTTP 1.1 connections, then it's an
> Opera bug, since they must be persistent.
>
> Do you have evidence that it is Opera closing the connections, or
> perhaps you have an intermediary that only speaks HTTP 1.0 ?
> This is often the case of proxies.
>
> You can add the Connection header in a servlet filter, perhaps by
> sniffing the User-Agent, but I find *very* strange that Opera ships
> with such a gross bug in its HTTP 1.1 implementation.
>
> Simon
> --
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> http://intalio.com
> http://bordet.blogspot.com
> ----
> Finally, no matter how good the architecture and design are,
> to deliver bug-free software with optimal performance and reliability,
> the implementation technique must be flawless.   Victoria Livschitz
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-- 
Regards,
Mario Georgiev
Senior Web Developer

Trading 212
www.trading212.com

E-mail: mario.georgiev@xxxxxxxxxxxxxx