How to detect a click event on a cross domain iframe

gistfile1.js

var myConfObj = {
  iframeMouseOver : false
}
window.addEventListener('blur',function(){
  if(myConfObj.iframeMouseOver){
    console.log('Wow! Iframe Click!');
  }
});

document.getElementById('YOUR_CONTAINER_ID').addEventListener('mouseover',function(){
   myConfObj.iframeMouseOver = true;
});
document.getElementById('YOUR_CONTAINER_ID').addEventListener('mouseout',function(){
    myConfObj.iframeMouseOver = false;
});

As alucidwolf, I am looking for a way to access a button inside the iFrame and trigger a click event when that button is clicked inside the iFrame that is on another domain.

Has anyone had success taking it this far?

Michael

Wow nice trick 👍

This solution is not working for FF v62, because when you click on iframe and redirecting to a new window/tab, blur event in not thrown. Unfortunately I didn't fund any workaround yet.

Here is how I track iframe click for FF/Chrome:

function () {
    const state = {};

    (function (setup) {
        if (typeof window.addEventListener !== 'undefined') {
            window.addEventListener('load', setup, false);
        } else if (typeof document.addEventListener !== 'undefined') {
            document.addEventListener('load', setup, false);
        } else if (typeof window.attachEvent !== 'undefined') {
            window.attachEvent('onload', setup);
        } else {
            if (typeof window.onload === 'function') {
                const oldonload = onload;
                window.onload = function () {
                    oldonload();
                    setup();
                };
            } else {
                window.onload = setup;
            }
        }
    })(function () {
        state.isOverIFrame = false;
        state.firstBlur = false;
        state.hasFocusAcquired = false;

        findIFramesAndBindListeners();

        document.body.addEventListener('click', onClick);

        if (typeof window.attachEvent !== 'undefined') {
            top.attachEvent('onblur', function () {
                state.firstBlur = true;
                state.hasFocusAcquired = false;
                onIFrameClick()
            });
            top.attachEvent('onfocus', function () {
                state.hasFocusAcquired = true;
                console.log('attachEvent.focus');
            });
        } else if (typeof window.addEventListener !== 'undefined') {
            top.addEventListener('blur', function () {
                state.firstBlur = true;
                state.hasFocusAcquired = false;
                onIFrameClick();
            }, false);
            top.addEventListener('focus', function () {
                state.hasFocusAcquired = true;
                console.log('addEventListener.focus');
            });
        }

        setInterval(findIFramesAndBindListeners, 500);
    });

    function isFF() {
        return navigator.userAgent.search(/firefox/i) !== -1;
    }

    function isActiveElementChanged() {
        const prevActiveTag = document.activeElement.tagName.toUpperCase();
        document.activeElement.blur();
        const currActiveTag = document.activeElement.tagName.toUpperCase();
        return !prevActiveTag.includes('BODY') && currActiveTag.includes('BODY');
    }

    function onMouseOut() {
        if (!state.firstBlur && isFF() && isActiveElementChanged()) {
            console.log('firefox first click');
            onClick();
        } else {
            document.activeElement.blur();
            top.focus();
        }
        state.isOverIFrame = false;
        console.log(`onMouseOut`);
    }

    function onMouseOver() {
        state.isOverIFrame = true;
        console.log(`onMouseOver`);
    }

    function onIFrameClick() {
        console.log(`onIFrameClick`);
        if (state.isOverIFrame) {
            onClick();
        }
    }

    function onClick() {
        console.log(`onClick`);
    }

    function findIFramesAndBindListeners() {
        return Array.from(document.getElementsByTagName('iframe'))
            .forEach(function (element) {
                element.onmouseover = onMouseOver;
                element.onmouseout = onMouseOut;
            });
    }
}

Very Useful! Thanks!

Nice one @dawaltconley

Perfect!

What if I have 4 iframes. I cant figure out how to separate them, when I click on one of them the function executes for all of them. My function is it zooms in the iframe when clicked but when i click 1 all of them get zoomed

ANN0Y1NGHACKER, here's how I targeted a specific iframe for a google captcha:

var frames = Array.from(document.getElementsByTagName('iframe'));
var recaptchaWindow;

frames.forEach(function(x){
if (x.src.includes('google.com/recaptcha/api2/bframe') ){
recaptchaWindow = x.parentNode.parentNode;
};
});

How to disable right click on iframe content.I have tried long time but can't solve it yet. I need this solution badly.Do u have any idea?

JQuery version

        var iframeMouseOver = false;
	$("YOUR_CONTAINER_ID")
		.off("mouseover.iframe").on("mouseover.iframe", function() {
			iframeMouseOver = true;
		})
		.off("mouseout.iframe").on("mouseout.iframe", function() {
			iframeMouseOver = false;
		});

	$(window).off("blur.iframe").on("blur.iframe", function() {
		if(iframeMouseOver){
			$j("#os_top").click();
		}
	});

Thanks! I created a script to simulate click event propagation of iframe.🥳

propagate_iframe_click_event.js

Could somebody provide an example to add mobile support?

I just created a bounty on StackOverflow for the one who tell me how to add mobile support to this code

Thanks for this.

When we have cross-domain iframe, this will stop triggering the click on the iframe it self.
Any idea how to trigger both the parent blur event and the iframe click event?

If page has multiple iframes then event will only fire the first time, unless you return focus to the page. Hmm..

This is so great. Thank you a lot.

so awsome !

did anyone done it with mobile Device???

did anyone done it with mobile Device???

also working in FireFox. thanks to @dawaltconley

window.addEventListener('blur', function () {
                window.setTimeout(function () {
                    if (document.activeElement == document.querySelector('your_iframe_selector')) {
                        //handle click
                    }
                }, 0);
});

As far as I can test this seems to work in Chrome and Firefox, but not in Safari. Anyone else got a workaround to get this working in Safari?

Also I would like to mention that if you add window.focus(); the user then don't have to click outside the iFrame themselves before it can register again a 'click' on the iFrame.

window.addEventListener('blur', function () {
    window.setTimeout(function () {
        if (document.activeElement == document.querySelector('your_iframe_selector')) {
            //handle click
            window.focus();
        }
    }, 0);
});

As far as I can test this seems to work in Chrome and Firefox, but not in Safari. Anyone else got a workaround to get this working in Safari?

Correction! It does work in (desktop) Safari. I needed to clear the browser history and after that my 'HTML/CSS/JS iframe click wizardry' did what it was supposed to do.