686608 - Body with opacity != 1 bugs any inputs/scroll bars on z-index >= 1

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Shane Larson]

Attachment: see the cursor line in the input field, its froze

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2
Build ID: 20110902133214

Steps to reproduce:

I created a page with a body of "opacity: 0.80; background-image: url('http://www.socialaddicts.net/graphics/index.png'); background-attachment: fixed; background-position: center center;"


Actual results:

Everything on z-index 0 worked fine, but anything with a z-index >= 1 would freeze... input fields would freeze when entering characters... scroll bars would freeze and bug out.


Expected results:

The input fields, and scroll bars shouldn't freeze because they don't on any other browser.

Comment 1

[Shane Larson]

additional notes to "steps to reproduce"

then i created a z-index with 200 and put a div with enough content to scroll a scroll bar and a i had a input field.

Comment 2

[Tim (fmdeveloper)]

Can you provide a public URL or full HTML file that exhibits this issue.

Comment 3

[Shane Larson]

Yes, I'll create one quick. brb

Comment 4

[Tim (fmdeveloper)]

Please do NOT set the priority - this is only for use by the developers.

Comment 5

[Shane Larson]

I didn't mean too sorry, I didn't even know I did sorry.

Comment 6

[Shane Larson]

Here is the test url http://www.socialaddicts.net/test.html by the way another fact is that is a combination of opacity < 1 + z-index >= 1 + position: fixed

Comment 7

[Shane Larson]

Have you reviewed the page?

Comment 8

[Shane Larson]

How do i quit adding a priority. Thanks, and sorry. All im doing is commenting.

Comment 9

[(mostly gone) XtC4UaLL [:xtc4uall]]

Attachment: Reporter's Testcase

Comment 10

[Boris Zbarsky [:bzbarsky]]

I see this on Mac too.  Timothy, roc, any idea what's going on here?

Comment 11

[Timothy Nikkel (:tnikkel)]

Regressed at the same time that retained layers landed.

Comment 12

[Timothy Nikkel (:tnikkel)]

Attachment: reduced testcase

Comment 13

[Karl Tomlinson (:karlt)]

(In reply to Shane Larson from comment #8)
> How do i quit adding a priority.

Bugzilla and Firefox interact badly on page reload.
Clicking the "Bug 686608" is one way to safely load the bug, updating the field to include others' changes.

Comment 14

[Boris Zbarsky [:bzbarsky]]

Or just do a force-reload (hold shift while clicking the reload button or triggering the reload keyboard shortcut).

Comment 15

[(mostly gone) XtC4UaLL [:xtc4uall]]

Confirmed with
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.12) Gecko/20100101 Firefox/10.0.12 ID:20130103094221 CSet: 9e1102e58ac8 ESR

WFM with
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0 ID:20131113153432 CSet: 04f4b34ae3ae ESR
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0 ID:20140512030202 CSet: 20ca234fd62b