1196388 - Developer Tools: javascript type errors do not provide sufficient information when source maps are in use

Status: RESOLVED DUPLICATE of bug 1317962

(DevTools :: Console, defect, P3)

Description

[joey]

Attachment: Firefox doesn't display the error so nicely

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0
Build ID: 20150819004006

Steps to reproduce:

Given some Javascript code where a variable is undefined or there's a Typerror, the Firefox Developer Tools do not provide sufficient information to debug the problem.


Actual results:

I expect the Firefox Developer Tools to give me some information about the error and point me to the line where the error is coming from.

See screenshot attached.


Expected results:

Firefox should provide more information about where the error is coming from and allow me to view the file in the debugger.

Chrome does this nicely.

Comment 1

[joey]

Attachment: Chrome's version of a similar error

Comment 2

[joey]

This was in Firefox developer tools version 42.0a2 (2015-08-19)

Comment 3

[joey]

Related: 670002

Comment 5

[Tom Tromey :tromey]

It works ok-ish since bug 1359144, but once 1317962 (re-)lands, it will include source-mapping the stack trace.