1121137 - On large number of options in a select element options get ignored when rendered as XHTML when the page is reloaded

Status: RESOLVED DUPLICATE of bug 977139

(Core :: Layout: Form Controls, defect)

Description

[Joó Ádám]

Attachment: options.html

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0
Build ID: 20141127110711

Steps to reproduce:

I have created a select element with 1073 options served with the Content-Type application/xhtml+xml.


Actual results:

On loading the page a variable number of options are missing at the end of the dropdown list. When serving the page as text/html all options are displayed.


Expected results:

All options should be displayed in the dropdown list regardless of Content-Type.

Comment 1

[:Gijs (he/him)]

This seems to work for me with the attached testcase... which options are missing? Can you make a screenshot?

Comment 2

[Joó Ádám]

Attachment: Screenshot

Comment 3

[Joó Ádám]

Comment on attachment 8548505 [details]
Screenshot

29 through 1073 are missing, though it varies on each page load.

Comment 4

[:Gijs (he/him)]

(In reply to Joó Ádám from comment #3)
> Comment on attachment 8548505 [details]
> Screenshot
> 
> 29 through 1073 are missing, though it varies on each page load.

That's very strange. Can you reproduce if you restart Firefox in safe mode (help > restart firefox with add-ons disabled) and/or in a clean profile? ( https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles )

Comment 5

[Joó Ádám]

Neither safe mode nor a clean profile makes any difference. However, I’ve just noticed that only reloads trigger it, on full page load all the items are correctly displayed.

Comment 6

[:Gijs (he/him)]

(In reply to Joó Ádám from comment #5)
> Neither safe mode nor a clean profile makes any difference. However, I’ve
> just noticed that only reloads trigger it, on full page load all the items
> are correctly displayed.

I can reproduce this now. This is super weird. Looking at this some more.

Comment 7

[:Gijs (he/him)]

Can reproduce this on OS X as well now...

The DOM is fine, and you can set the value of the select box to a number that's not displayed in the list, and that works. But the layout of the select's dropdown is not fine.

Comment 8

[:Gijs (he/him)]

tn, do you have time to take a look at this, or suggest someone else who could?

Comment 9

[Timothy Nikkel (:tnikkel)]

That's odd. Mats I think you've been active in this area recently, do you know where the problem is likely to be?

Comment 10

[Mats Palmgren (inactive)]

See bug 977139 comment 3.