1409552 - Audio controlbar ignores CSS width in FF56

Status: RESOLVED DUPLICATE of bug 1397486

(Core :: Audio/Video, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:56.0) Gecko/20100101 Firefox/56.0
Build ID: 20170926190823

Steps to reproduce:

Create a simple <audio> tag and try to apply a CSS width to it.


Actual results:

The width of the <audio> element changes, but the controlbar remains a fixed width.


Expected results:

The controlbar display should be the width specified for the <audio> element.

Comment 1

[[e-mail]]

This works properly in all other browsers, and in prior versions of Firefox.

Comment 2

[Pascal Chevrel (relman team) -> :pascalc]

Could you attach a minimal html testcase exposing this bug please? Thanks

Comment 3

[[e-mail]]

Attachment: audiodemo.html

Here's a simple demo. Doesn't matter where the width spec is (inline, <style>, separate CSS file) - FF 56 ignores it. Ditto for percentage width (within a containing <div>, for example).

Comment 4

[[e-mail]]

BTW, in my little demo, do an "inspect element" on the <audio> tag, and you'll see that the element itself really is 800px wide - it's only the controlbar itself that isn't.

Comment 5

[Pascal Chevrel (relman team) -> :pascalc]

Confirmed, I can see the bug in 56 but not in Nightly or 57 beta9. Unfortunately I can't reproduce the bug with mozregression.

Comment 6

[Pascal Chevrel (relman team) -> :pascalc]

The regression happened between 56b6 and 56b7

Comment 7

[Mike Taylor [:miketaylr]]

Let's go ahead and close this as WORKSFORME (or FIXED...?), since it doesn't reproduce in current 57 betas or nightly, and it's not something we'd uplift to release.

Comment 8

[[e-mail]]

I'd label it FIXED, since it was definitely broken in FF56. Looks like FF57 is only a few weeks away, so the wait for the fix is minimal.