1255781 - The image glitches while scrolling on pages with Flash content

Status: RESOLVED DUPLICATE of bug 1212813

(Core :: Panning and Zooming, defect)

Description

[Mihai Boldan, Desktop QA [:mboldan]]

[Affected versions]:
- Firefox 47.0a2(2016-03-10), Firefox 48.0a1(2016-03-10)

[Affected platforms]:
- Windows 7 x64, Ubuntu 14.04 x64

[Steps to reproduce]:

Prerequisites:Adobe Flash Player is installed. 
1.Launch Firefox.
2. Go to http://www.kongregate.com/games/Eric_V/strange-magic-escape?haref=HP_HNG_strange-magic-escape .
3. Scroll down and observe the page.
4. Start the game.
5. Scroll down again.

[Expected result]:
- The page is scrolled without any glitches on steps 3 and 5.

[Actual result]:
- The page glitches when performing steps 3 and 5.

[Regression range]:
- This is a regression since the issue is not reproducible on FF 45 RC and FF 46.0b1.
- I will come back with the regression ASAP.

[Additional notes]:
- This issue is not reproducible on Mac OS X.
- On Windows 7, using Firefox 47.0a2, when performing step 5, the previous image is displayed.

Comment 1

[Andrei Vaida [:avaida]]

[Tracking Requested - why for this release]: Flash-related glitch affecting Kongregate and possibly other popular websites with similar content.

Comment 2

[Ritu Kothari (:ritu) (Inactive, please n-i to RyanVM, jcristau, or pascal)]

Tracked since this is a new regression in Fx47

Comment 3

[Ritu Kothari (:ritu) (Inactive, please n-i to RyanVM, jcristau, or pascal)]

Mihai, please provide a regression range whenever you can. Thanks!

Comment 4

[Petruta Horea [:phorea], Desktop QA]

The regression range for the glitches (game is overlapped by grey rectangles) that appear while scrolling:

https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=2722b65059df232c43dfaec075dfe484e0db952c&tochange=e1e281f04f2706c55d017ca55e35ada2e1d05aaf 
suggests bug 1137944 as the culprit (Found commit message: Bug 1137944 - Add plugin window handling for apz related notifications received by the content process. r=mstange)

If that's the case, the glitches mentioned in this bug may be dupe of bug 1212813. 


This is the regression range for the issue mentioned in Notes section (previous image is shown after interacting with the game and then scrolling) found only in Aurora:
https://hg.mozilla.org/releases/mozilla-aurora/pushloghtml?fromchange=5118c15e69fd2abff03bea945d9e0200849b7955&tochange=383d2c72f4c77a81d44704272dcfbbe3c8cafca8

The following bugs may be causing this, so I'm cc'ing :Kats - bug 1250550, bug 1240133, bug 1210057.

Please let me know if I can help investigating further.

Comment 5

[Kartikaya Gupta (email:[e-mail])]

If the "glitch" that you're referring to is that the flash content is hidden during scrolling, then yes, this is a dupe of bug 1212813. It's "by design" until we can come up with a better solution.

Comment 6

[Petruta Horea [:phorea], Desktop QA]

(In reply to Kartikaya Gupta (email:[e-mail]) from comment #5)
> If the "glitch" that you're referring to is that the flash content is hidden
> during scrolling, then yes, this is a dupe of bug 1212813. It's "by design"
> until we can come up with a better solution.
> 
> *** This bug has been marked as a duplicate of bug 1212813 ***

Yes, the flash content is grey while scrolling.

What about the second issue that only happens in Aurora?
>>> 
> This is the regression range for the issue mentioned in Notes section
> (previous image is shown after interacting with the game and then scrolling)
> found only in Aurora:
> https://hg.mozilla.org/releases/mozilla-aurora/
> pushloghtml?fromchange=5118c15e69fd2abff03bea945d9e0200849b7955&tochange=383d
> 2c72f4c77a81d44704272dcfbbe3c8cafca8
> 
> The following bugs may be causing this, so I'm cc'ing :Kats - bug 1250550,
> bug 1240133, bug 1210057.

Comment 7

[Kartikaya Gupta (email:[e-mail])]

(In reply to Petruta Rasa [QA] [:petruta] from comment #6)
> What about the second issue that only happens in Aurora?

Since it's fixed in Nightly, the most useful thing would to get a fix window from Aurora to Nightly, and then we can uplift the fix. However I suspect from your regression range it was caused by:

8248eb3a6e69	Markus Stange — Bug 1244258 - Back out bug 1201327 on Aurora in order to fix bug 1227327 and friends. a=lizzard

which means it's a wontfix for aurora.

Comment 8

[Ritu Kothari (:ritu) (Inactive, please n-i to RyanVM, jcristau, or pascal)]

No need to track this since it's a dup. and unaffected for 47 based on comment 7.