Hikashop loose map after add, delete, add an item

That's really strange, some other users reported similar issues with the cart. However, we were unable to replicated the problem. Even on their website. There must be something. If only we could find what...

Could you try with another browser ?
Could you give us the URL of your website? Maybe with the step by step to reproduce the problem ?

Sure, but like I said, I'm not able to reproduce the problem.
It's working fine on my end. I tried on both IE8, Chrome and Firefox.

So it must be something either related to an option in your browser or your session...Maybe you could try to reset the cookies for your website in your browser ? Does that solve the problem ?
Again, if you try on another browser, does it work ?

After thinking about the problem I added some code to the cart module so that the HTTP headers of the response given to the browser tells him to not cache it because I knew that IE can be quite strange with caching issues and that it might help.

Now that doesn't mean that the problem is solved... Hopefully, it won't.

For the record, I added to the file components/com_hikashop/views/product/tmpl/cart.php the code

if(JRequest::getWord('tmpl','')=='component'){
	header( 'Cache-Control: no-store, no-cache, must-revalidate' );
	header( 'Cache-Control: post-check=0, pre-check=0', false );
	header( 'Pragma: no-cache' );
}

So that's great. Another bug fixed