addEventListener("input", callback) doesn't work in opera?

I'm trying to listen to "oninput" event, but something is wrong with Opera:

document.getElementById("i1").oninput = function(){
    console.log("inputting");
};
document.getElementById("i1").addEventListener("input", function(){
    console.log("inputting");
});

The first one works, but the second one doesn't work....it this a bug of opera?

Fiddle: http://jsfiddl开发者_StackOverflowe.net/nn2zS/

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OK, I figured out this myself, addEventListener has a 3rd parameter, it can be ignored in Chrome but not other browsers.