1716539 - Toolbox broken on system pages with server side target switching (can't access property isParentProcess)

Status: RESOLVED DUPLICATE of bug 1707878

(DevTools :: General, defect)

Description

[Jan Honza Odvarko [:Honza] (always need-info? me)]

STR:

1. Flip devtools.target-switching.server.enabled pref on
2. Load about:debugging (or any other system page)
3. Open the Toolbox (e.g. by pressing F12 in Windows)
4. The Toolbox is empty - ERR

There is an error in the Browser Console:

Exception while opening the toolbox TypeError: can't access property "isParentProcess", this.targetCommand.targetFront is undefined TypeError: can't access property "isParentProcess", this.targetCommand.targetFront is undefined
    hasResourceCommandSupport resource://devtools/shared/commands/resource/resource-command.js:773
    _startLegacyListenersForExistingTargets resource://devtools/shared/commands/resource/resource-command.js:304
    _startListening resource://devtools/shared/commands/resource/resource-command.js:836
to

open resource://devtools/client/framework/toolbox.js:982

Honza

Comment 1

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Alex, this feels like recent regression, could you please look at that, thanks!

Honza

Comment 2

[Alexandre Poirot [:ochameau]]

This has just been fixed by bug 1707878.
Let me know if you still reproduce what I confirmed that it was failing without that bug and fixed with it.

Comment 3

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Just verified and works for me now, thank you Alex.

Honza