Bug 245754

Summary:	Web Inspector: open Debugger on web.snapchat.com makes it very slow.
Product:	WebKit	Reporter:	Karl Dubost <karlcow>
Component:	Web Inspector	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	inspector-bugzilla-changes, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari Technology Preview
Hardware:	All
OS:	All
URL:	https://web.snapchat.com/?lang=en-US

Description Karl Dubost 2022-09-27 14:53:16 PDT

Steps to reproduce:

1. Go to https://web.snapchat.com/?lang=en-US
2. open Web Inspector
3. Command F to search sources
4. Type supportedBrowser
5. wait
6. click on NC.UnsupportedBrowser on the left column
7. wait
8. wait 
9. wait
10. Then finally when the code comes up, try to click on the {} icon

Expected:
The code is being prettified

Actual:
The full UI seems to be frozen.

Version 16.1 (18614.2.6.1.1) on macOS ventura beta.

Comment 1 Radar WebKit Bug Importer 2022-09-27 15:00:54 PDT

<rdar://problem/100478107>

Comment 2 Karl Dubost 2022-09-27 15:03:57 PDT

Firefox devtools score a bit better here. I can set breakpoints and prettify the code.