1277677 - [e10s] Ooyala embedded flash video flashes black when scrolling

Status: RESOLVED DUPLICATE of bug 1252874

(Core Graveyard :: Plug-ins, defect)

Description

[Daniel Holbert [:dholbert]]

Attachment: (initial broken testcase; disregard)

STR:
1. Load attached testcase.
(Or, load this URL:
  http://www.vox.com/2016/6/2/11841074/trump-cnn-chyron
...and scroll down to the "Trump's Twitter by the numbers" video below the article.)

2. Scroll up and down with mousewheel or arrow keys.

ACTUAL RESULTS:
The embedded flash video ("Donald Trump's Twitter by the numbers") turns entirely black while the scroll operation is happening.

EXPECTED RESULTS:
Embedded flash video shouldn't change appearance when scrolling.

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: testcase 1 (using remote ooyala embed script)

[Updating testcase to refer to script using HTTPS instead of HTTP, so it hopefully won't get blocked...]

Comment 2

[Daniel Holbert [:dholbert]]

Attachment: screencast of bug

Here's a screencast of the bug. As shown later in the screencast, the bug doesn't reproduce if I click and drag the scrollbar -- it only reproduces on scrollwheel & keyboard uparrow/downarrow presses.

Comment 3

[Daniel Holbert [:dholbert]]

Attachment: testcase 2 (with border/background added on wrapper div)

Comment 4

[Daniel Holbert [:dholbert]]

If I disable smooth-scrolling, our behavior is even more bizarre -- the video simply doesn't move when I scroll (though testcase 2's border/background do move), until a paint is forced due to e.g. a click or a focus-change.

Comment 5

[Daniel Holbert [:dholbert]]

Attachment: screencast of testcase 2, with smooth-scroll disabled

Comment 6

[Daniel Holbert [:dholbert]]

Version info:
 Nightly 49.0a1 (2016-06-02)
 Flash 11.2 r202
 Ubuntu Linux 16.04 (64-bit)

Comment 7

[Daniel Holbert [:dholbert]]

Happily, I can't reproduce any of the issues here in Nightly on Windows 10 (with Flash 21.0.0.242).

So: might just be a bug in the legacy Flash release that Linux users are stuck with... (Or, maybe a legit Gecko plugin-interaction bug that's only exposed with that particular version.)

Comment 8

[Jim Mathies [:jimm]]

Sorry, we didn't block on the linux scroll capture bug.