1900742 - CodeMirror6: Paused line is not highlighted for a breakpoint hit on load

Status: RESOLVED FIXED

(DevTools :: Source Editor, defect, P2)

Description

[Julian Descottes [:jdescottes]]

STRs:

• set devtools.debugger.features.codemirror-next = true
• open https://juliandescottes.github.io/webcomponents-playground/debugger-example/
• open DevTools > Debugger
• open script.js
• set a breakpoint on line 3 console.log("script loaded");
• close the source
• reload the page

ER: The debugger should pause and line 3 should be highlighted
AR: The debugger pauses but line 3 is not highlighted

Note: this only happens if the file is not opened in the Debugger before reloading. It also doesn't seem to happen for other breakpoints triggered later in the lifecycle of the page (eg you can try with the click handler)

Comment 1

[Julian Descottes [:jdescottes]]

I was trying to record a screencast and I no longer see the bug. Looks like this is intermittent/inconsistent.

Comment 2

[Julian Descottes [:jdescottes]]

Attachment: cm6_line_not_highlighted.mp4

Comment 3

[Hubert Boma Manilla (:bomsy)]

Attachment: Bug 1900742 - [devtools] Cleanup and make sure line content marker is set on component mount r=#devtools-reviewers

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/62f5c456bc1e
[devtools] Cleanup and make sure line content marker is set on component mount r=devtools-reviewers,nchevobbe

Comment 5

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/62f5c456bc1e