sstephenson/prototype — pull request #38 by rafalwrzeszcz (2012-02-19 15:34:24+00:00)
Title: Replaced named entity with character number for XHTML comatibility.

Browsers have problems with HTML named entities when working in real XHTML mode (when page is served as application/xhtml+xml). It causes problems with innerHTML - throws exceptions about invalid pointer. This fixes the problem and still makes first element of innerHTML an whitespace entity.

Sorry for additional last-line diff - edited in nano.