如何检查iframe内容是否已加载并可见

Question

I use an iframe on a website to show external websites. Some external websites doesn't allow the representation in a frame.

Does anybody know how I can check the content in the iframe? I will check if there is any content presented.

Answer 1

Please find the below code example

var $iframe=$("#id").find('iframe');
if ($iframe.data('src')){ // only do it once per iframe
   $iframe.prop('src', $iframe.data('src')).data('src', false);
}