[javascript] jQuery/JavaScript to replace broken images

Here is an example using the HTML5 Image object wrapped by JQuery. Call the load function for the primary image URL and if that load causes an error, replace the src attribute of the image with a backup URL.

function loadImageUseBackupUrlOnError(imgId, primaryUrl, backupUrl) {
    var $img = $('#' + imgId);
    $(new Image()).load().error(function() {
        $img.attr('src', backupUrl);
    }).attr('src', primaryUrl)
}

<img id="myImage" src="primary-image-url"/>
<script>
    loadImageUseBackupUrlOnError('myImage','primary-image-url','backup-image-url');
</script>

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jQuery/JavaScript to replace broken images