如何让Ember回到珍贵页面的旧垂直位置？

I have a long list of items in first page. I click one item to go to the item detail page(route). Then if I go back, by clicking either back button in the browser or JavaScript history back function, I end up at the beginning of the list. This is not what I want. How can I go back to where I was? I have a long list of items in first page. I cl