1745143 - Race condition: The original source has not been created yet when the debugger needs to pause on breakpoint

Status: ASSIGNED

(DevTools :: Debugger, defect, P2)

Description

[Hubert Boma Manilla (:bomsy)]

STR
Clone https://github.com/vuejs/petite-vue
yarn && yarn dev
Open devtools on http://localhost:3000/
Go to http://localhost:3000/tests/html.html
Open the debugger
Click this source from the source tree Users/hubertbomamanilla/Projects/petite-vue/src/ -> app.ts
Set breakpoint on line 13
Reload the page

ER
The debugger should pause on breakpoint
No warning in the browser console
AR

The debugger cannot find original source and logs a warning in the browser console.

Comment 1

[Hubert Boma Manilla (:bomsy)]

Attachment: Bug 1745143 - [devtools] Remove sourceQueue used for sourcemapped files r=ochameau

The issue here was sourcemapped (original) files are throttled using the SourceQueue so
sometimes on reload the original sources gets created late, and the source for the selected frame
does not yet exist when it is needed.

The SourceQueue is currently only used to for sourcemapped files, it's worth using the
opportunity to clean it all up.

Comment 2

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

The severity field is not set for this bug.
:Honza, could you have a look please?

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