I just ran across this an Google App Engine article that uses that funny backwards \'P\' character in some URL\'s (look near the top of the first code box). You know that charac
¶ is in the URL which forms part of the html escape sequence ¶, i.e. ¶. It is odd browser behavior that, given the escape sequence is not complete (missing ;), Chrome is still rendering the symbol. The escape sequence itself has just not been escaped correctly in the snippet I believe..