1122009 - [e10s] console.group / console.groupEnd in child process corrupts indentation in parent process console e10s

Status: RESOLVED WORKSFORME

(DevTools :: Console, defect)

Description

[The 8472]

Attachment: broken grouping.png

Calling the following from a child process can lead to ever-deeper indenting on the console, see screenshot. This doesn't happen with e10s disabled.

console.group()
console.group("foo")
console.group("bar")
console.group("baz")
console.groupEnd()

Comment 1

[The 8472]

That's supposed to be

console.group()
console.log("foo")
console.log("bar")
console.log("baz")
console.groupEnd()

Comment 2

[The 8472]

To state the problem more precisely:

Group logging from the child process corrupts the console in the parent process.

- e10s on
- open the browser content toolbox
- open the browser console
- Components.utils.import("resource://gre/modules/devtools/Console.jsm")
- repeatedly call this from the child process:

console.group()
console.log("foo")
console.log("bar")
console.log("baz")
console.groupEnd()

- observe parent console getting corrupted

Optionally: turn on something in the parent (e.g. gc logging) that causes other log entries to be interleaved with groups from content

Comment 3

[Nicolas Chevobbe [:nchevobbe]]

Seems fine to me now.
We still have the thing about logs coming from parent process appearing in groups created by the content page, but there's no much we can do (even UI-wise, that's tricky).
The thing that might make that better is Bug 1260877.