[ic] What is mv_pc?

[Jonathan Clark]

> I am confused by the variable mv_pc. What does it mean? How to retrieve
> the value of mv_pc?
> It seems that it is auto-generated in sequence, any algorithm there?
> I didn¡¯t see any description in the doc; but I did see every Purchase
> link has mv_pc in its URL.
> Any clarification on this is much appreciated.

It is there to generate unique urls for each page - this is so that your
pages will not be cached (say by a web proxy) and then the cached page
delivered to the user next time round instead of your new, different, page.
There are some proxies out there which seem to ignore http headers telling
them not to cache..

You don't need to set / return the value. Just trust ic to come up with the
right urls, including session id where necessary.

Jonathan
Webmaint.