helenp - 6:09 pm on Jan 15, 2013 (gmt 0)

There must be some other rule elsewhere that conflicts. Do we need this line? RewriteRule !index\.html? - [S=2]

I have tried both yours and themadscientist, both with and without that line, and sometimes it worked then suddenly I got a https file when I wrote index.htm in an http adress.
So it looks like there is some strange cache issue when swithch form https to http
however it works, thanks