WKWebView white-screen after loading content

It’s hard to be 100% sure but I believe this relates to a known bug in WebKit (r. 27858129). A reproducible case would be really appreciated. If you can file a bug report with a project that reproduces the issue, that’d be fab.

Please post your bug number, just for the record.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

Any updates? we are encountering similar issue, and it's really urgent.

From safari developer tools I can see full dom structure and i was able to invoke native functions (eg. window.bridge.goBack()) through the console, everything seems working well but on the app, it's just blank.

https://s18.postimg.org/w4h2162rt/white_screen.png

Do you see the same sort of crash that mbargar-cainc saw? If so, can you post an example crash report?

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

Hi eskimo,

Sorry for the delayed reply, I checked in diagnosis & usage, no crash reports.

We are using an iPhone 6, 10.0.2.

Anything you need besides those, please let me know hanhaify#msn.com

Thanks a lot,

We are having a similar issue. Our application worked fine until IOS 10 came along.

Our experience is the same in that we can't reproduce by specific actions. The white screen happens randomly, usually within half hour of using the app. We have done refactoring to do better memory cleanup which has extended the occurance past half hour so it certainly seems like a memory/heap issue.

Eskimo can you send a link to defect 27858129? The link in the post is just back to this article.

Thanks,

Dan

Eskimo can you send a link to defect 27858129?

No. In general you can’t see information about bugs unless you filed them.

The link in the post is just back to this article.

Yeah, I know, sorry. DevForums strips non-HTTP[S] links, alas. I leave them in because it’s quite convenient for me, but I should probably find a way to strip them out.

ps I just had a look at the state of 27858129 and there’s nothing new to report on that front.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

Eskimo can you provide any update on the logged defect? We have done a bunch of work to our application but still see the same results.

can you provide any update on the logged defect?

Nothing new to report here.

It would be great if you filed your own bug about this, preferable with a minimal project that reproduces the problem (even if it only reproduces the problem occasionally). Either your bug will provide enough insight that it’ll be investigated independently, which would be cool, or it’ll be closed as a dup of 27858129, in which case you’ll be able to see the state of the original.

Please post your bug number, just for the record.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

I logged a bug for this and included crash logs where each file maps to the exact time we saw each WSOD crash in Safari on the iPad so hopefully that helps the dev team pinoint the issue. The bug is 31659884

Have you solved this problem? I'm encountering the same issue.

I'm encountering the same issue. There's full dom structure, but the webView is blank.

Is App Sandbox turned on your app's capabilities?

This seems to be fixed as of today’s update to Safari 12.0.1. Hooray 😃