Retrieving document content # within an iframe

Question

Retrieving document content # within an iframe

I am trying to access the body of a document from an iframe. I am a body, I want to get the src value of another iframe.

<iframe src="https://putstream.com/movie/oblivion?watching=RaHP6KwPJ8prB0MfMlhJiYYwW" allowfullscreen="true" webkitallowfullscreen="true" mozallowfullscreen="true" style="height: 820.5px;"> 
#document
    <html lang="en">
        <head><style class="vjs-styles-defaults">
        </head>

        <body>
            <iframe id="openloadIframe" allowfullscreen="" webkitallowfullscreen="true" mozallowfullscreen="true" style="width:100%;height:100%;" src="https://openload.co/embed/bbhP94t0548"></iframe>   
        </body>
    </html>

My attempts:

var oiframe = document.getElementsByTagName('iframe')[1];       //accessing the first iframe
var sif = oiframe.getElementById('openloadIframe').src; //getting the actual content 
var ifc = oiframe.contentWindow.getElementById('openloadIframe').src;   //at this point I just tried to get it working
var ifhtml = oiframe.contentWindow.document.body.innerHTML.getElementById('openloadIframe').src;