back-button-reload

Useful for mini carts not updating when back button is pressed (bfCache), mainly in Safari but also Firefox. Triggers a page reload.

Once your page is in a final state that you don't want to outlive a redirect, you can just bind the pageshow event and then check for the "persisted" property being true to determine if you should reload it.
```
window.addEventListener("pageshow", function(evt){
    if(evt.persisted){
        setTimeout(function(){
            window.location.reload();
        },10);
    }
}, false);
```
I was having problems with the count on a mini-cart, so in addition to the above I had to keep the count element in the DOM, but instead use a class of "hide" to hide/show it depending on how many elements were in the cart.

Another solution to disable bfCache is to use the following:
```
window.addEventListener('unload', function () {});
```