According to the HTML5 spec, while resolving a window.open, the new window location should be about:blank. http://www.whatwg.org/specs/web-apps/current-work/#open2 http://www.whatwg.org/specs/web-apps/current-work/#browsing0 In ToT WebKit, the location is /. This appears to be in WebCore/bindings/js/JSLocation.cpp which returns prettyURL() + "/", but sometimes the KURL is invalid so prettyURL() returns "".
Created attachment 19215 [details] layout test Here's a layout test that output the value of window.location during a window.open. This test would go in LayoutTests/fast/dom/Window/.
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I can't seem to repro either.
We even have a test attached, should we land it?