I've searched the net for this, but nobody seems to have the answer. Anyone knows where the "page source" gets saved when I select Debug - Save page source to disk from within the Mac App Store? Thank you.
It's saved in /private/tmp as pageSource.html
In OS X 10.9 Mavericks, it appears to save to ~/Library/Containers/com.apple.appstore/Data/Library/Documentation/pageSource.html