// Evaluating JavaScript:
(String.fromCharCode(27) + '(Bfoo' + String.fromCharCode(27) + '(Bbar').replace(String.fromCharCode(27) + '(B', '', 'gm')
// In Chrome: => foo(Bbar
// In FF: => foobar

// Although that will work fine (use it!)
(String.fromCharCode(27) + '(Bfoo' + String.fromCharCode(27) + '(Bbar').replace(new RegExp(String.fromCharCode(27) + "\\(B", 'gm'), '')