1926364 - Debugger shows popup for the wrong variable in the presence of long strings

Status: RESOLVED DUPLICATE of bug 1904489

(DevTools :: Debugger, defect)

Description

[psychpsyo]

Attachment: repro.html

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0

Steps to reproduce:

1. Write some code that handles strings long enough for the string preview in the debugger to be broken across multiple lines.
2. Debug said code, stepping through it line-by-line.
3. Notice that the popups for field below the gap that the long string preview causes are generally inaccurate and belong to other variables around the hovered one.

Actual results:

I hovered over a variable of mine and the devtools claimed it to be the JSON.parse() function that was actually a line above.

Expected results:

The popup should've shown information relevant to my variable.

Comment 1

[psychpsyo]

Attachment: screenshot.png

Comment 2

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

The Bugbug bot thinks this bug should belong to the 'DevTools::Debugger' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Julian Descottes [:jdescottes]]

Thanks for filing, I can reproduce on Release and DevEdition, but the bug seems to be fixed for me on Nightly. Can you test and see if it is fixed for you?

Comment 4

[Julian Descottes [:jdescottes]]

Nicolas will run mozregression on this.

Comment 5

[Nicolas Chevobbe [:nchevobbe]]

codemirror 5 still has the issue. You need to have wrapping disabled

Comment 6

[psychpsyo]

It seems fixed on Nightly for me as well.

Comment 7

[Hubert Boma Manilla (:bomsy)]

It looks like this is fixed by CM6. I'll close.

Thanks