Bug 254238 - Web Inspector: breakpoint on content modification is not persistent
Summary: Web Inspector: breakpoint on content modification is not persistent
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Web Inspector (show other bugs)
Version: WebKit Nightly Build
Hardware: All All
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2023-03-21 15:50 PDT by Karl Dubost
Modified: 2023-03-21 15:54 PDT (History)
2 users (show)

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Description Karl Dubost 2023-03-21 15:50:29 PDT 
1. with Safari Tech Preview 165
2. Go to https://www.pinterest.com/
3. Log in
4. Open Web Inspector
5. Go to the Elements tab
6. Find #homefeedGridFadeInTransitionContainer > div > div aka (<div style="width: 100%">…)
7. Control+click on this element
8. Select "Break on…", choose: "subtree modified" or/and "node removed"
9. Shift + reload

Expected:
Stop when the subtree is being modified. 

Actual:
Nothing happens, the page just reload, but the breakpoint was not effective


10. Check the Sources tab

Expected:
Breakpoint is visible

Actual:
Breakpoint is gone.


11. Close Web Inspector and Reopen Web Inspectore
12. Go to Sources tab, the breakpoint is visible again.
Comment 1 Radar WebKit Bug Importer 2023-03-21 15:50:39 PDT 
<rdar://problem/107026006>
Comment 2 Karl Dubost 2023-03-21 15:54:27 PDT 
Additional test

Break On: Node Removed

for #__PWS_ROOT__

which is at a either level of hierarchy exhibits the same issue.