How could it be that not only for *.wikipedia.org, but also my
taizhongbus.jidanni.org, at our public library
(
http://www.ntl.gov.tw/, where you take a number to get a seat before
the doors open), one can login fine, meaning HTTP POST works, but
"show preview" and "save page" cause their MSIE browser to timeout
waiting. Though they like to block things like port 22, etc. I can't
believe they are blocking outbound requests with "wpTextbox" in them
or something. What might be up their sleeve? The lady said she didn't
know, and it's far away so I can't experiment often, nor before, "time
up sir, there are other users waiting."