initCustomEvent pass data for method doesn't work anymore

Question

I wrote a firefox extension and for interation data between privilege and non-privilege pages I use this snipped code

    //Listen for the event
    window.addE         


        

Answer 1

You probably have to use __exposedProps__.

Like

var detail = {
  name: "activate",
  method: function(){},
  __exposedProps__: {method: "r"}
};

Needless to say that, unless you are absolutely sure that you know what you 're doing, this is a security risk.

Answer 2

Are you sure things used to work before?

You need to set the 4th argument of addEventListener to true. Argument is called wantsUntrusted.

MDN :: addEventListener

Also see this topic here: How to listen to custom events on all windows, bubbling issue?

So try this:

//Listen for the event
window.addEventListener("MyEvent", function(evt) {
    console.log(evt.detail);
}, false, true);

//Dispatch an event
var evt = document.createEvent("CustomEvent");
evt.initCustomEvent("MyEvent", true, true, {
  name : 'activate',
  method : function() {
    //...
  }    
});
window.dispatchEvent(evt);