Created attachment 153693 [details] Screenshot of the non-wrapping in Webkit. If you enable "Link Preview (Hover)" in 4chan's settings (see the Settings link at the top and bottom of most pages), and then hover over a ">>" link, the text in the preview "window" is not wrapped in either Safari or Chrome (20 stable or 22.0.1214.0 canary), and if the text is long enough it causes the preview to take up enough space so that the horizontal scrollbar appears in the browser. It does wrap in Firefox, IE, and Opera however. Attached is a screenshot of how it looks in Chrome/Safari. I'll also attach a screenshot of how it looks in Firefox (and the other browsers). In both, I hovered my mouse over the >>148051030 link in the red highlighted post.
Created attachment 153694 [details] Screenshot of wrapping in Firefox (looks very similar if not exactly the same in IE and Opera)
4chan has evolved and WebKit as well. I am sure, this bug would've been fixed one way or another but if it is reproducible, please reopen. Marking this as a 'RESOLVED WONTFIX'.