This tests that assigning to document.location from a timeout from the onload handler adds a back/forward item.

============== Back Forward List ==============
        http://127.0.0.1:8000/navigation/document-location-onload.html  **nav target**
curr->  http://127.0.0.1:8000/navigation/document-location-onload.html?1  **nav target**
===============================================
