This feature is experimental. It may be changed or removed in a future version.
Returns a normalized URL for the current browser location.
The returned URL is an absolute pathname like
"/path" without a hostname or port.
It will include a
#hash fragment and query string, if present.
Note that if the current layer does not have visible history,
the browser's address bar will show the location of an ancestor layer.
To get the location of the current layer, use