Steps to reproduce:
1. Go to a url
2. Right click and Inspect Element for anything on the page
3. In the Inspector, Select Resources, and click on a resource (can be js or html, or some other text file)
4. Select text in the resource, and drag beyond the bottom of the window
Window will scroll, so text off screen will be selected too.
No scrolling occurs.
Tested in r35814 on 10.5.4 on a MacPro.
I think this is a regression caused by r35244.
I don't think the bug is related to r35244, I've looked into it and it seems that according to the mouse eventm the first node under the mouse is the HTML node from the whole inspector, instead of the text node included in the current displayed ressource div.
Fixed in r35882.