this is a forum post to further inspect TW-8972. Maxim, you wanted to know how the HTTP traffic looks at that point.
Attached, please find a pcap file I made with Wireshark. According to this, there's a POST request made to
without any parameters. The strange thing is that when I look at the traffic in Firebug, it displays the POST URL as
This made me take another capture with Firefox but there's no difference in the parameters present in the actual HTTP traffic, so I guess we may be on to something.
All the best