[javascript] How can I detect whether an iframe is loaded?

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.

This question is related to javascript jquery html iframe

The answer is


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');

    };

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>

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