1117640 - Hiding iframe with display: none makes scrollable containers in its document forget scroll position

Status: NEW

(Core :: Layout, defect)

Description

[Harshvardhan Dadhich]

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0
Build ID: 20141126041045

Steps to reproduce:

1. open two diff HTML pages in jd Tab on 1 HTML page using iframe. 
2. Both the child pages should have a div in them with height 50% and scrollable, put data to overflow the height and show scroll bar.
3. Scroll to some extent, and then switch to another tab.
4. Now, switch back to the old tab, you will see that the div is scrolled top automatically, which shouldn't happen.




Actual results:

Scrolled top.


Expected results:

Should remain where it was.

Comment 1

[:Gijs (he/him)]

What is "JQ Tabs" or "JD Tabs"?

Please provide more details on how to reproduce this.

Comment 2

[Harshvardhan Dadhich]

(In reply to :Gijs Kruitbosch from comment #1)
> What is "JQ Tabs" or "JD Tabs"?
> 
> Please provide more details on how to reproduce this.

JQ Tabs are jQuery Tabs. 
http://jqueryui.com/tabs/

Comment 3

[:Gijs (he/him)]

(In reply to Harshvardhan Dadhich from comment #2)
> (In reply to :Gijs Kruitbosch from comment #1)
> > What is "JQ Tabs" or "JD Tabs"?
> > 
> > Please provide more details on how to reproduce this.
> 
> JQ Tabs are jQuery Tabs. 
> http://jqueryui.com/tabs/

Oh. So these are tabs on a web page that comment #0 is talking about. Can you provide a testcase?

Comment 4

[Harshvardhan Dadhich]

(In reply to :Gijs Kruitbosch from comment #3)
> (In reply to Harshvardhan Dadhich from comment #2)
> > (In reply to :Gijs Kruitbosch from comment #1)
> > > What is "JQ Tabs" or "JD Tabs"?
> > > 
> > > Please provide more details on how to reproduce this.
> > 
> > JQ Tabs are jQuery Tabs. 
> > http://jqueryui.com/tabs/
> 
> Oh. So these are tabs on a web page that comment #0 is talking about. Can
> you provide a testcase?

Will this be helpful

Steps to reproduce:

1. open two diff HTML pages in jd Tab on 1 HTML page using iframe. 
2. Both the child pages should have a div in them with height 50% and scrollable, put data to overflow the height and show scroll bar.
3. Scroll to some extent, and then switch to another tab.
4. Now, switch back to the old tab, you will see that the div is scrolled top automatically, which shouldn't happen.




Actual results:

Scrolled top.


Expected results:

Should remain where it was.

Comment 5

[:Gijs (he/him)]

Attachment: Testcase

Comment 6

[:Gijs (he/him)]

(In reply to Harshvardhan Dadhich from comment #4)
> Will this be helpful

I read comment #0 the first time, thanks. It's better if testcases are provided by the reporter, so that we don't start talking about different things or spend forever playing 20 questions as to the exact details of the testcase.

As it is, is attachment 8549602 [details] what you meant?

Comment 7

[Harshvardhan Dadhich]

Attachment: test_firefox.html -- test case

this is the test case

Comment 8

[:Gijs (he/him)]

Comment on attachment 8549605 [details]
test_firefox.html -- test case

This breaks on bugzilla because it references http scripts - in any case, it's the same as the testcase I uploaded. Thank you for confirming it's accurate.

Comment 9

[Harshvardhan Dadhich]

(In reply to :Gijs Kruitbosch from comment #8)
> Comment on attachment 8549605 [details]
> test_firefox.html -- test case
> 
> This breaks on bugzilla because it references http scripts - in any case,
> it's the same as the testcase I uploaded. Thank you for confirming it's
> accurate.

Yes thanks.

Comment 10

[Alice0775 White]

Attachment: Reduced no jquery testcase

At least, with the attached reduced testcase, I can reproduce the problem on very old Firefox 0.8.

Comment 11

[Alice0775 White]

Chrome and Edge works as expected...

Comment 12

[Jonathan Watt [:jwatt]]

Mass bug change to replace various 'parity' whiteboard flags with the new canonical keywords. (See bug 1443764 comment 13.)