841979 - Adding watch expression from the debugger does not work

Status: RESOLVED FIXED

(DevTools :: Debugger, defect)

Description

[Mack Duan]

With the debugger paused on a line:
1) Click "Add watch expression", causing input box to show
2) Type the name of a variable in the function scope
3) Press enter

After the steps above, the message "Add watch expression" replaces the input box. No watch expressions are shown

Comment 1

[Victor Porof [:vporof][:vp]]

(In reply to Mack Duan from comment #0)
> With the debugger paused on a line:
> 1) Click "Add watch expression", causing input box to show
> 2) Type the name of a variable in the function scope
> 3) Press enter
> 
> After the steps above, the message "Add watch expression" replaces the input
> box. No watch expressions are shown

What page have you tested on?

Does it still happen in Nightly? I remember an issue with watch expressions throwing and not showing at all if there was a "use strict" statement in the targeted script, but that should have been fixed with bug 832470.

Comment 2

[Mack Duan]

Ah, yes, it does seem to be related to 'use strict'. I can add watch expression after I remove the 'use strict' declaration.

Comment 3

[Mack Duan]

And it looks fixed in Nightly. Thanks!