Well it seems that Firefox 2.0.0.14 has provided the most interesting results with my protocol fuzzer. Char: 56320, link: jav�ascript: Char: 56321, link: jav�ascript: Char: 56322, link: jav�ascript: Char: 56323, link: jav�ascript: Char: 56324, link: jav�ascript: Char: 56325, link: jav�ascript: ,, ,, ,, ,, All the way to:- char: 57343, link: jav�ascript: and hex entities [...]