How can I detect whether an iframe is loaded?

Question

I am trying to check whether an iframe has loaded after the user clicks a button.

I have

$('#MainPopupIframe').load(function(){
    console.log('load the iframe')
    //the console won't show anything even if the iframe is loaded.
})

HTML

<button id='click'>click me</button>

//the iframe is created after the user clicks the button.
<iframe id='MainPopupIframe' src='http://...' />...</iframe>

Any suggestions?

By the way, my iframe is created dynamically. It doesn't load with the initial page load.

Answer 1

You may try this (using jQuery )

 $(function(){ $('#MainPopupIframe').load(function(){ $(this).show(); console.log('iframe loaded successfully') }); $('#click').on('click', function(){ $('#MainPopupIframe').attr('src', 'https://heera.it'); }); });

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <button id='click'>click me</button> <iframe style="display:none" id='MainPopupIframe' src='' /></iframe>

jsfiddle DEMO .

Update: Using plain javascript

 window.onload = function(){ var ifr = document.getElementById('MainPopupIframe'); ifr.onload=function(){ this.style.display='block'; console.log('laod the iframe') }; var btn = document.getElementById('click'); btn.onclick=function(){ ifr.src='https://heera.it'; }; };

 <button id='click'>click me</button> <iframe style="display:none" id='MainPopupIframe' src='' /></iframe>

jsfiddle DEMO .

Update: Also you can try this (dynamic iframe)

 $(function(){ $('#click').on('click', function(){ var ifr = $('<iframe/>', { id:'MainPopupIframe', src:'https://heera.it', style:'display:none;width:320px;height:400px', load:function(){ $(this).show(); alert('iframe loaded !'); } }); $('body').append(ifr); }); });

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <button id='click'>click me</button><br />

jsfiddle DEMO .

Answer 2

I imagine this like that:

<html>
<head>
<script>
var frame_loaded = 0;
function setFrameLoaded()
{
   frame_loaded = 1;
   alert("Iframe is loaded");
}
$('#click').click(function(){
   if(frame_loaded == 1)
    console.log('iframe loaded')
   } else {
    console.log('iframe not loaded')
   }
})
</script>
</head>
<button id='click'>click me</button>

<iframe id='MainPopupIframe' onload='setFrameLoaded();' src='http://...' />...</iframe>

Answer 3

You can try onload event as well;

var createIframe = function (src) {
        var self = this;
        $('<iframe>', {
            src: src,
            id: 'iframeId',
            frameborder: 1,
            scrolling: 'no',
            onload: function () {
                self.isIframeLoaded = true;
                console.log('loaded!');
            }
        }).appendTo('#iframeContainer');

    };

How can I detect whether an iframe is loaded?

Question

3 answers

solution1
186 ACCPTED 2012-09-04 15:54:55

solution2
2 2012-09-04 15:57:13

solution3
2 2017-12-07 22:34:54

How can I detect whether an iframe is loaded?

Question

3 answers

solution1 186 ACCPTED 2012-09-04 15:54:55

solution2 2 2012-09-04 15:57:13

solution3 2 2017-12-07 22:34:54

solution1
186 ACCPTED 2012-09-04 15:54:55

solution2
2 2012-09-04 15:57:13

solution3
2 2017-12-07 22:34:54