[webkit-dev] gdk build/ js support issues?

Not sure what I am seeing here, but installed the latest sources for the gdk build, built, and tried a few test websites. Noticed: document.write not working (checked, does work in the windows and safari builds); then tried using other javascript that would give me a visible indication since I know alerts aren't implemented for GDK yet...doesn't work either (attached)... Is anyone else using the GDK version? Ideas as to why javascript support is having issues for just that platform?