Trigger a button click inside an iframe [duplicate]

Question

This is the iframe code:

<div id="OutDiv" class="outerdiv">
    <iframe src="http://beta.sportsdirect.bg/checkout/onepage/" id="InnerIframe" class="FrameCSS" scrolling="no"></iframe>
</div>

Here is the HTMl code of the button which the iframe above is calling:

<button type="button"  id="SuperWebF1" title="Continue" class="button">Continue</button>

Here is the jQuery function that i use to trigger the click of the button when page is loaded:

 $('#SuperWebF1').trigger( "click" );

But this is working like that only when i place the jQuery code inside the source of button and the iframe is calling the button with the script.

I want to make an event which is clicking the button from outside the iframe. Is it possible ?

Thanks in advance!

Answer 1

NOTE: .contents() does not work if iframe's src points to cross domain page. More: Cross domain iframe issue and Get DOM content of cross-domain iframe

//execute code after DOM is ready
$(function() {

  //find iframe
  let iframe = $('#main_iframe');
  
  //find button inside iframe
  let button = iframe.contents().find('#main_button');
  
  //trigger button click
  button.trigger("click");
  
});

<!--Add jQuery library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

If you need to manipulate another page inside iframe, search for official API or GET parameters. Example: Youtube Embed Video, Google Maps Embed Api