Send ref to frame element

Newsgroups	comp.lang.javascript
From	Andrew Poulos <ap_prog@hotmail.com>
Subject	Send ref to frame element
Date	2018-12-06 15:57 +1100
Message-ID	<O8CdneYHv5K8MZXBnZ2dnUU7-RPNnZ2d@westnet.com.au> (permalink)

Show all headers | View raw

I need a frameElement to send a self reference to the parent so I tried this

let obj = {};
obj.type = "ref";

if (window.frameElement !== null) {
   obj.value = window.frameElement;
   console.log(obj.value);
   window.parent.postMessage( JSON.stringify(obj), "*");
}

and in the parent

window.addEventListener('message',function(evt) {
   let rec = JSON.parse(evt.data);
   if (rec.type == "ref") console.log(rec.value);
}, false);

While obj.value is a frameElement rec.value is only ever an empty object.

Can postMessage send a window reference? If so, how?

Andrew Poulos

Back to comp.lang.javascript | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-06 15:57 +1100
  Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-06 19:02 +1100
  Re: Send ref to frame element "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-12-06 10:05 +0100
    Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-09 19:44 +1100
      Re: Send ref to frame element JJ <jj4public@vfemail.net> - 2018-12-09 16:22 +0700
  Re: Send ref to frame element Julio Di Egidio <julio@diegidio.name> - 2018-12-09 01:46 -0800
    Re: Send ref to frame element Julio Di Egidio <julio@diegidio.name> - 2018-12-09 02:06 -0800
      Re: Send ref to frame element Julio Di Egidio <julio@diegidio.name> - 2018-12-09 02:51 -0800
        Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-10 10:11 +1100
          Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-10 10:23 +1100
            Re: Send ref to frame element Julio Di Egidio <julio@diegidio.name> - 2018-12-09 16:10 -0800
              Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-10 12:44 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-10 04:17 +0100
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-10 15:25 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-10 21:28 +0100
                Re: Send ref to frame element "Mark-" <nospam@mapson.xyz> - 2018-12-11 15:41 +0000
                Re: Send ref to frame element Julio Di Egidio <julio@diegidio.name> - 2018-12-10 14:21 -0800
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-11 14:48 +1100
                Re: Send ref to frame element Julio Di Egidio <julio@diegidio.name> - 2018-12-10 23:37 -0800
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-12 07:51 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-11 22:52 +0100
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-12 09:37 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-13 17:31 +0100
                Re: Send ref to frame element "Mark-" <nospam@mapson.xyz> - 2018-12-13 17:33 +0000
                Re: Send ref to frame element "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-12-13 19:19 +0100
                Re: Send ref to frame element "Mark-" <nospam@mapson.xyz> - 2018-12-13 20:27 +0000
                Re: Send ref to frame element "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-12-13 19:17 +0100
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-14 07:56 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-13 22:44 +0100
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-14 09:21 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-14 01:08 +0100
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-14 12:54 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-14 16:04 +0100
                Re: Send ref to frame element Andrew Poulos <ap_prog@hotmail.com> - 2018-12-15 06:32 +1100
                Re: Send ref to frame element Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-12-15 01:11 +0100

csiph-web