Bug 40421 – REGRESSION: GMail becomes blank after closing other tabs

• Component: Layout and Rendering
• Status: RESOLVED FIXED

[Ismail Donmez]

How to reproduce;

- Open GMail in one tab
- Open another tab and visit your favourite news site
- Open another tabs and visit just another site
- Close two tabs

Expected results:

- GMai is shown as usual

What happens instead:

- GMail tab is blank

Note 1: Safari 4/5 does not have this problem, only WebKit
Note 2: Disabling Flash plugin fixes the issue

[Alexey Proskuryakov]

I cannot reproduce this with r60936 on Mac OS X 10.5.8 and Flash 10.0 r42 installed.

[Ismail Donmez]

(In reply to comment #1)
> I cannot reproduce this with r60936 on Mac OS X 10.5.8 and Flash 10.0 r42 installed.

Would you mind trying with Flash 10.1 rc7? I am on OSX 10.6.3 fwiw.

[Ismail Donmez]

Looks like Adobe just released Flash Plugin 10.1 as stable and bug is reproducible with it.

[Ismail Donmez]

Problem doesn't seem to reproducible with Flash plugin 10.0 r45, so the problem lies in the 10.1 update.

[Simon Fraser (smfr)]

<rdar://problem/8081382>

[Alexey Proskuryakov]

I could reproduce this on Mac OS X 10.6 with nightly r60968 and Flash 10.1. I could not reproduce under the same configuration with accelerated compositing disabled.

Doesn't seem to happen with shipping Safari/WebKit 5 indeed.

[Simon Fraser (smfr)]

*** Bug 41738 has been marked as a duplicate of this bug. ***

[Simon Fraser (smfr)]

Created attachment 60683 [details]
Patch

Comment on attachment 60683 [details]
Patch

WebCore/ChangeLog:16
 +          are suspended (indicating that we'reinside recalcStyle()).
Typo: we'reinside

I would have added a public setNeedsStyleRecalcSoon() method to HTMLFrameOwnerElement and not exposed ContainerNode::queuePostAttachCallBack().

r=me

[Simon Fraser (smfr)]

http://trac.webkit.org/changeset/62687

[Ismail Donmez]

The original bug is fixed but there is still a one time flicker when switching to GMail tab, which is a regression compared to Safari 5.

[Simon Fraser (smfr)]

The flicker is a tiled layer issue. I'm working on fixing that via bug 34009.

[Simon Fraser (smfr)]

*** Bug 41881 has been marked as a duplicate of this bug. ***