How to Call Parent Window JavaScript Function inside iframe

Question

Here is my code on http://my-localhost.com/iframe-test.html

Answer 1

You can use postMessage!

PARENT

if (window.addEventListener) {
    window.addEventListener ("message", receive, false);        
}
else {
    if (window.attachEvent) {
        window.attachEvent("onmessage",receive, false);
    }
}

function receive(event){
    var data = event.data;
    if(typeof(window[data.func]) == "function"){
        window[data.func].call(null, data.params[0]);
    }
}

function alertMyMessage(msg){

    alert(msg);
}

IFRAME

function send(){
    window.parent.window.postMessage(
        {'func':'alertMyMessage','params':['Thanks for Helping me']},
        'http://www.my-website.com'
    );
}

REFERENCE

https://developer.mozilla.org/en-US/docs/Web/API/Window.postMessage