Bug 177602 – WebGL content is black after switching tabs

• Component: WebGL
• Status: RESOLVED CONFIGURATION CHANGED

[Kirill S. Dmitrenko]

1. Open https://yandex.com/maps/213/moscow/?ncrnd=3459&ll=37.583335%2C55.733222&z=16&l=stv%2Csta&panorama%5Bpoint%5D=37.588440%2C55.733808&panorama%5Bdirection%5D=171.429911%2C-4.006784&panorama%5Bspan%5D=120.000000%2C75.351069
2. Drag panoramic image
3. Swtich tab
4. Return to the tab with Yandex.Maps
5. Player is black

That's a regression that was introduced in Safari 11 (same problem in TP). I wasn't able to isolate smaller test case:( Is there a way to debug this with internal WebKit tools?

[Alexey Proskuryakov]

I cannot reproduce this with macOS High Sierra on a 15" Mid 2015 MacBook Pro.

What hardware and OS are you using? Can you try other configurations to further isolate the problem?

[Jon Lee]

I could reproduce on iMac. As soon as I drag again the panorama returns.

[Kirill S. Dmitrenko]

(In reply to Alexey Proskuryakov from comment #1)
> I cannot reproduce this with macOS High Sierra on a 15" Mid 2015 MacBook Pro.
> 
> What hardware and OS are you using? Can you try other configurations to
> further isolate the problem?

macOS 10.12.6 (16G29), MacBook Pro (Retina, 13-inch, Late 2013)
macOS 10.12.6 (16G29), MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)

Wasn't able to repro on 10.12.6 (16G29) on MacBook Air (13-inch, Mid 2011)

[Radar WebKit Bug Importer]

<rdar://problem/34740792>

[Kirill S. Dmitrenko]

Any news?

[Jon Lee]

Not yet, but it's in our queue.

[Dean Jackson]

I can no longer reproduce this on a MacBook Pro or Mac Pro running the seed of 10.13.4, using Safari Technology Preview 48.

Kirill, can you try again with an updated configuration?

[Kirill S. Dmitrenko]

We can't reproduce the problem on available configurations too (Safari 11.0.3 on 10.11.6, 10.12.6 and 10.13.3). And there're no more user complaints about it to our support.