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Date: Mon, 4 Sep 2017 19:15:34 -0700 (PDT)
From: Kevin Carhart <kevin@carhart.net>
To: Karl Dahlke <eklhad@comcast.net>
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Subject: [Edbrowse-dev] contentWindow
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I think there is a divergence based on whether the iframe is coming from 
html or created within js.  If I use the iframe in jsrt, it works.  But if 
I play along with how an iframe is created in the jquery.js code that I 
referenced, I think the contentWindow is not a window and doesn't have 
.document.  Is it a goof that the line in jsNode uses t->jv?  Or not!  It 
could be deliberate and a part of the whole.  I can't tell.    Here's my 
transcript that shows not working, followed by working.  Asterisks added 
to offset my input from the responses.

* b {any website with JS and jquery}
...
* jdb
* x1 = jQuery( "<iframe frameborder='0' width='0' height='0'/>")
[object Object]
* ok(x1)
0,length
* x2 = x1[0]
[object Object]
* ok(x2)
childNodes,style,className,class,nodeValue,attributes,ownerDocument,nodeName,nodeType,innerHTML,inner$HTML,contentDocument,content$Document,contentWindow,content$Window,parentNode
* x2.contentWindow
[object Object]
* ok(x2.contentWindow)
childNodes,style,className,class,nodeValue,attributes,ownerDocument,nodeName,parentNode,innerHTML,inner$HTML
* x2.nodeName
iframe
* x1.contentWindow.document
jdb line 1: TypeError: cannot read property 'document' of undefined
* .
bye
* b jsrt
22878
628
* jdb
* x1 = document.getElementsByTagName("iframe")
[object Object]
* x1
[object Object]
* ok(x1)
0
* x2 = x1[0]
[object Object]
* ok(x2)
childNodes,style,className,class,nodeValue,attributes,ownerDocument,src,nodeName,onload,nodeType,parentNode,innerHTML,inner$HTML,contentDocument,content$Document,contentWindow,content$Window
* x2.contentWindow.document
fetch frame http://www.edbrowse.org/jsfrm {it succeeds from here}