initKeyEvent keypress only works in FireFox. need a cross browser solution!

Question

This is my code:

Answer 1

For Webkit-based browsers (Safari/Chrome), the event initialization call should look a bit differently (see https://bugs.webkit.org/show_bug.cgi?id=13368):

initKeyboardEvent(in DOMString typeArg, 
                  in boolean canBubbleArg, 
                  in boolean cancelableArg, 
                  in views::AbstractView viewArg, 
                  in DOMString keyIdentifierArg, 
                  in unsigned long keyLocationArg, 
                  in boolean ctrlKeyArg, 
                  in boolean shiftKeyArg, 
                  in boolean altKeyArg, 
                  in boolean metaKeyArg, 
                  in boolean altGraphKeyArg);

Answer 2

To add to Alexander's response:

There is a webkit bug that keyboard events initialized using initKeyboardEvent get an incorrect keyCode and charCode of 0: https://bugs.webkit.org/show_bug.cgi?id=16735

A working solution for this is posted in this SO answer.