1896605 - Error on shift + click column breakpoints

Status: NEW

(DevTools :: Debugger, defect, P2)

Description

[Hubert Boma Manilla (:bomsy)]

Steps to reproduce

1. On about:blank
2. In the console, evaluate "--"; document.querySelectorAll("r");debugger;
3. Add a breakpoint on line 1
4. On the second column breakpoint (the one before document), do Shift+Click

Expected results

Should disable breakpoint

Actual results

• Breakpoint is not disabled
• Shows error in the browser console TypeError: can't access property "disabled", breakpoint is undefined

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Note: Could potentially cause a crash (i was not able to produce at this time, but is worth watching out for)

Comment 1

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

This bug has been marked as a regression. Setting status flag for Nightly to affected.

Comment 2

[Alexandru Trif, Desktop Test Engineering [:atrif]]

Hello! It seems that moregression indicates this pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=4c09da80722fcf62db02f19dc67f3f1a6b88f84d&tochange=c8b9ae708d8e1805bd68f3deb3c0fe5cd9f9e1c5 so I believe that this started happening after the implementation of bug 1574053. Following the same steps from comment 0 will reproduce the issue.
However, if we add a breakpoint in front of document and then use Shift + click it will function as expected on my side (it will disable/enable breakpoint). If more information is needed please let me know.