[Zope] [OT] Double HTTP POSTS with Internet Explorer???

[peter sabaini]

Hi,

this very probably has nothing to do with Zope but I'm at my wits end 
and maybe one of you has had this before so here goes:

  - I have a large-ish form (~30 input fields) which has a method="POST"

  - When using Internet Explorer (tested: 5.5 and 6.0 SP 1), submitting 
this form seems to result in *two* POST Requests

  - This cannot be reproduced reliably, i.e. roughly half the time form 
submission results in one POST (as it should be), half the time there 
are two POSTs

  - With Mozilla 1.1 (win32, linux) theres always just one POST

  - I captured network traffic (using Ethereal); IE seems to just close 
the connection, sometimes even before finishing to send the POST data, 
without waiting for an answer (HTTP /1.1 200 OK etc.). It just sends a 
TCP FIN, ACK and opens a new connection.

  - There is virtually no time lag between the two POSTs (no "hang" or 
something like that)


Has anyone had anything like this before? Do you have any tips on 
debugging this?

Any help would be greatly appreciated.

Thanks,
peter.


ps.: System: w2k pro, Zope 2.5.1 binary, browsers: IE 5.5, Mozilla 1.1 
(linux, win32)