Bug 249196

Summary: If the WebGL option is turned off, executing the WebGL code will crash the entire page.
Product: WebKit Reporter: limichange <limichange>
Component: WebGLAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ap, dino, djg, kbr, kkinnunen, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: Mac (Apple Silicon)   
OS: macOS 13   
Attachments:
Description Flags
Reproduce the steps none

limichange
Reported 2022-12-12 17:39:17 PST
# Description when one turn off the `WebGL via Metal` option, the canvas crashes the entire page. The page just displays `A problem repeatedly occurred with "https://get.webgl.org"`. I tested a lot of other sites that behaved the same way. Wouldn't it be better to throw a JS error for the developer to deal with? ## Test site https://get.webgl.org https://threejs.org/examples/#webgl_animation_keyframes https://pixijs.com
Attachments
Reproduce the steps (81.30 MB, video/mp4)
2022-12-14 18:17 PST, limichange 		no flags
Details
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Alexey Proskuryakov
Comment 1 2022-12-14 12:02:13 PST
Turning off WebGL via Metal means that the old OpenGL based implementation is used. It's expected to be buggy (that's why it's obsolete and not used by default), but I don't think that crashing on every WebGL page is expected. What hardware, macOS version and Safari version are you seeing this with?
limichange
Comment 2 2022-12-14 18:08:53 PST
Thank you for your response. Below is the specific information needed, and I will upload a video about the bug. ## Env ### Safari Version 16.2 (18614.3.7.1.5) SourceVersion 7614003007001005 ### MacOS 'c. limichange@limichanges-Mac-Studio.local ,xNMM. --------------------------------------- .OMMMMo OS: macOS 13.1 22C65 arm64 OMMM0, Host: Mac13,1 .;loddo:' loolloddol;. Kernel: 22.2.0 cKMMMMMMMMMMNWMMMMMMMMMM0: Uptime: 13 hours, 50 mins .KMMMMMMMMMMMMMMMMMMMMMMMWd. Packages: 152 (brew) XMMMMMMMMMMMMMMMMMMMMMMMX. Shell: zsh 5.8.1 ;MMMMMMMMMMMMMMMMMMMMMMMM: Resolution: 2560x1440 :MMMMMMMMMMMMMMMMMMMMMMMM: DE: Aqua .MMMMMMMMMMMMMMMMMMMMMMMMX. WM: Quartz Compositor kMMMMMMMMMMMMMMMMMMMMMMMMWd. WM Theme: Blue (Light) .XMMMMMMMMMMMMMMMMMMMMMMMMMMk Terminal: iTerm2 .XMMMMMMMMMMMMMMMMMMMMMMMMK. Terminal Font: Monaco 14 kMMMMMMMMMMMMMMMMMMMMMMd CPU: Apple M1 Max ;KMMMMMMMWXXWMMMMMMMk. GPU: Apple M1 Max .cooc,. .,coo:. Memory: 5000MiB / 32768MiB
limichange
Comment 3 2022-12-14 18:17:39 PST
Created attachment 464051 [details] Reproduce the steps
Radar WebKit Bug Importer
Comment 4 2022-12-14 19:11:25 PST
<rdar://problem/103383754>
Kimmo Kinnunen
Comment 5 2022-12-15 00:10:23 PST
Thank you for the report. Is there a specific reason you turn off "WebGL via Metal"? This is a WebKit / Safari internal option. This is not user-facing configuration toggle and users are not intended to modify it. The crash is intentional and due to sandboxing.
limichange
Comment 6 2022-12-15 00:51:42 PST
Sure, this is not user-facing configuration toggle. Since there are options, it is more or less likely to be touched by mistake. Anyway, it's not a good behavior to crash the whole page.
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