1251513 - window.parent() return the current window it self repeatedly

Status: UNCONFIRMED

(Core :: DOM: Core & HTML, defect)

Description

[M.A. Saif]

Attachment: firefox bug _reproduce_code.rar this file contain those sample html code

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0
Build ID: 20160210153822

Steps to reproduce:

Let's consider 3 static HTML page.

"main.html", "child1.html", "child2.html"

From main.html open a new window on any event using window name "myWin"

      function openWindow () {
		window.open("child1.html","myWin");
	}

From child1.html open another window on any event using the same nae "myWin"

	function openWindow () {
		window.open("child2.html","myWin");
	}

Now from child2.html try to get its parent. using `window.parent`.


Actual results:

`window.parent` return itself which is `child2.html`.

Repeated call repeatedly return itself.

window.parent.parent.parent.parent.parent return `child2.html`


Expected results:

`window.parent` should return ''child1.html"
`window.parent.parent` should return  `main.html`
`window.parent.parent.parent`  should retrun null/undefined

Comment 1

[Loic]

Attachment: child2.html

Comment 2

[Loic]

Attachment: child1.html

Comment 3

[Loic]

Attachment: main.html

Comment 4

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

What makes you say so? parent only returns the parent browsing context, not the opener browsing context; i.e., with frames, not window.open.

Comment 5

[Andrew Overholt [:overholt]]

See comment 4.

Comment 6

[M.A. Saif]

https://developer.mozilla.org/en-US/docs/Web/API/Window/parent 
this say's `If a window does not have a parent, its parent property is a reference to itself.`
And I have seen different behavior on other browser.  

By the way i have tried below too::

window.opener.opener.opener.opener ..... on child2.html  and its also keep returning `child2.html` which is it self. (wrong in my point of view, and  window.opener.opener should return main.html & window.opener should return child1.html)

when 'window.opener' on child1.html return 'main.html' (correct)

Comment 7

[Andrew Overholt [:overholt]]

Ms2ger, you seem to have knowledge here. Can you respond to comment 6?

Comment 8

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Please attach test files that reproduce the problem.