Weblogic 10.0 sends chunked encoding with a HTTP 1.0 request

This took ages to find, it was only the mod_weblogic's Debug ALL parameter that pointed me in the right direction because it printed all the headers in each stage.
Server:
Apache 2.0 with mod_weblogic and SSL (Dev: Windows XP SP2)
Apache 2.2 with mod_weblogic and SSL (Prod: Unix/Solaris/Linux)
Weblogic 10.0 running on SPARC Solaris 9
Proxy:
Squid/2.6.STABLE22 (Prod: Unix/Solaris, Dev:Windows XP SP2)
Client:
IE 6.0.2900.2180
Windows XP SP2
Under IE if a user doesn't have both of the "Use HTTP 1.1" and "Use HTTP 1.0 through proxy connections" selected they will get an error message when trying to download a file sent with "Content-disposition attached" header through a proxy server and over SSL.
This is because IE is sending a HTTP 1.0 request to weblogic and weblogic is responding with HTTP 1.1 "Transfer-encoding: chunked" response which is causing IE 6 to fail to display the error. It manifests itself as an 'apache bridge error'.
If either of the other two requirements of a proxy server or SSL aren't there then IE handles it properly.
Workaround is to disable chunked transfer for that particular server. In WLST set /Servers/<server>/WebServer/<server>/ChunkedTransferDisabled = 'true'
Any further information of a patch or additional settings would be appreciated.
This seems less than ideal as some of the reports are quite large and would benefit from chunked transfer particularly those that use the correct IE settings and those using Firefox.

Does your MDB require transactions ? If so you need to XA enable the connection factory. Looks like you are using a transactional MDB with non XA connection factory.

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Bugra.Hasbek wrote:
Hello everybody,
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