14738 - xpcexceptions info for JSErrors is broken

Status: RESOLVED FIXED

(Core :: XPConnect, defect, P3)

Description

[John Bandhauer]

The JS engine's enabling of 'errors as exceptions' broke the system that
xpconnect was using to extract JS error info from JS ErrorReports and put that
info into the xpcexceptions. This means that where previously when calling
'broken' JS code the caller would get an expection object with nice info about
the JS error and its location, now it gets no such details.

I have a fix to the engine to expose a function for extracting the JSErrorReport
from a JS exception (if present). And I have a code change to xpconnect to use
that info if available to return us to the previous functionality of useful and
informative exceptions (including the human readable toString version dumped to
the console).

This will continue to help folks find their JS errors.

Comment 1

[John Bandhauer]

fix checked in

Comment 2

[Tracy Walker [:tracy]]

mass remove verifyme requests greater than 4 months old