Shipping: adding a per-item charge glitch
I got this to work perfectly now I've watched the video properly.
if I get to the checkout having correctly evaluated the shipping and use the browsers back button the shipping value is re-calculated with an additional item added.
So with a cart containing 4 items it now thinks there are 5 and there seems to be no way to reset it unless I go right back to the checkout and click 'update cart' which seem to wipe the cached value.
Any one else seen this?
Any one fixed this?