| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>This page will attempt to access the frameElement of its sibling and report the results on request</title> |
| |
| <h1>I did get loaded</h1> |
| |
| <script> |
| "use strict"; |
| |
| window.onmessage = e => { |
| const { newDocumentDomain } = e.data; |
| if (newDocumentDomain) { |
| document.domain = newDocumentDomain; |
| } |
| |
| const siblingWindow = parent.frames[0]; |
| |
| try { |
| const { frameElement } = siblingWindow; |
| |
| let result = "something wierd happened"; |
| if (frameElement === null) { |
| result = "null"; |
| } else if (frameElement.constructor) { |
| result = frameElement.constructor.name; |
| } |
| |
| parent.postMessage(result, "*"); |
| } catch (e) { |
| parent.postMessage(e.name, "*"); |
| } |
| }; |
| </script> |
