1776250 - The inspector doesn't correctly manage switching from multiprocess to parent process browser toolbox

Status: RESOLVED FIXED

(DevTools :: Inspector, enhancement)

Description

[Alexandre Poirot [:ochameau]]

The markup view doesn't update and you might still see content of target being removed, typically the content of tabs. The rule view will be empty when selecting any element of the document that are in the content processes.

Also, it would be nice to display some explicit message on <browser> and <iframe> that we can't debug because of this new feature.

Comment 1

[Julian Descottes [:jdescottes]]

Attachment: Bug 1776250 - [devtools] Show a badge in the markupview when children are unavailable

Just a WIP. This lacks localization as well as dynamic updates when a target gets removed.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/600f16b46822
[devtools] Show a badge in the markupview when children are unavailable r=nchevobbe

Comment 3

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/600f16b46822

Comment 4

[Julian Descottes [:jdescottes]]

Regression on custom expandall

== Change summary for alert #34985 (as of Wed, 03 Aug 2022 08:03:46 GMT) ==

Regressions:

Ratio	Test	Platform	Options	Absolute values (old vs new)
11%	damp custom.inspector.expandall.balanced	linux1804-64-shippable-qr	e10s fission stylo webrender-sw	562.27 -> 624.10
10%	damp custom.inspector.expandall.balanced	linux1804-64-shippable-qr	e10s fission stylo webrender	620.19 -> 683.83
10%	damp custom.inspector.expandall.balanced	windows10-64-shippable-qr	e10s fission stylo webrender-sw	619.37 -> 682.46
10%	damp custom.inspector.expandall.balanced	windows10-64-shippable-qr	e10s fission stylo webrender	609.25 -> 671.03
10%	damp custom.inspector.expandall.balanced	macosx1015-64-shippable-qr	e10s fission stylo webrender-sw	534.32 -> 586.74
10%	damp custom.inspector.expandall.balanced	macosx1015-64-shippable-qr	e10s fission stylo webrender	532.25 -> 583.30
9%	damp custom.inspector.expandall.manychildren	windows10-64-shippable-qr	e10s fission stylo webrender	130.16 -> 141.26
8%	damp custom.inspector.expandall.manychildren	linux1804-64-shippable-qr	e10s fission stylo webrender	129.90 -> 140.65
8%	damp custom.inspector.expandall.manychildren	macosx1015-64-shippable-qr	e10s fission stylo webrender-sw	128.66 -> 139.24
6%	damp custom.inspector.expandall.manychildren	windows10-64-shippable-qr	e10s fission stylo webrender-sw	130.17 -> 137.35

For up to date results, see: https://treeherder.mozilla.org/perfherder/alerts?id=34985

Comment 5

[Julian Descottes [:jdescottes]]

Needs to be investigated