1574091 - Break on Node removal doesn't work

Status: RESOLVED INVALID

(DevTools :: Debugger, defect, P2)

Description

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Break on "Node removal" doesn't break the execution for me.

Honza

Comment 1

[Jan Honza Odvarko [:Honza] (always need-info? me)]

STR:

1. Load this page: http://janodvarko.cz/tests/bugzilla/1574091/
2. Follow instructions on the page

Honza

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

:Honza, if you think that's a regression, then could you try to find a regression range in using for example mozregression?

Comment 3

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Logan, can you reproduce the issue using my test case?
Is this a regression or the feature isn't just finished yet?

Honza

Comment 4

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Interestingly, now it works for me...
Could there be a racing issue?
Honza

Comment 5

[Logan Smyth [:loganfsmyth]]

This is expected behavior.

"Node Removal" runs only when the exact node that you've added the breakpoint to is removed. It does not run if the node's parent node is removed from the document, or if one of that node's children is removed (as in your example).

If you add the dom mutation BP to specifically the <li> in your list, then the breakpoint will stop properly.

Comment 6

[:Harald Kirschner :digitarald]

+1, Node Removal only acts on the selected node (same in Chrome). For added/removed children, subtree modification will be the right option (and works).