1238499 - Discrepancy between enabled and disabled e10s, different number of options to be displayed

Status: RESOLVED INVALID

(Core :: Layout: Form Controls, defect)

Description

[Alice0775 White]

+++ This bug was initially created as a clone of Bug #1238488 +++


Steps to reproduce:
1. Open http://codepen.io/cgarnier/pen/zrzqaM

Actual results:
If enabled e10s, there are 23 options
If disabled e10s, only 1 option

Expected results:
Same as Chrome, Edge and IE11 ,there are 23 options.
OR
At least, it should be no discrepancy between enabled and disabled e10s.

Comment 1

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

A plain html file attached here would be great.

Comment 2

[YF (Yang)]

Attachment: testcase

Comment 3

[arni2033]

This one is easy to explain, I guess.
In non-e10s mode <option>s in testcase are aligned horizontally because of "display: inline-block;"
In e10s mode it's not possible to style <option>s (right?). So they align vertically.
I'll mark it as dependant bug for now; feel free to edit.

Comment 4

[arni2033]

In addition (if you also noticed the difference between Nightly and Release):

On Release 43 I see a very long drop-down list with only 1 option (that is expected, because <option>s have "display: inline-block;"), while on Nightly 46 (non-e10s mode) the drop-down list's height equals to the <option>'s height.
That part was fixed by bug 1208978. Fix range:
> https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=36cd98d7f222d2e4177dc43eb55e0b1f655b55dd&tochange=67f016207ddeab47ac1341873e6d3c1be389f0f5

Comment 5

[Gregory Pappas [:gregp]]

Are you still able to reproduce this bug?

Comment 6

[Alice0775 White]

No, no longer available non-e10s.