70162 - "access denied" error messages should say what access is denied to

Status: VERIFIED DUPLICATE of bug 83131

(Core :: Security: CAPS, defect)

Description

[Jesse Ruderman]

Most of Mozilla's error messages are much more informative that IE's "object 
error" and "object does not support this property or method".  As a result, I 
always debug my javascript code in Mozilla and then just hope that it works on 
IE.  Mozilla's "access denied" error messages, however, doesn't tell me what 
access was denied to.

1. javascript:void(x=window.open("http://www.mozillazine.org"));
2. javascript:alert(x.document.images[0]);

Current error message:
JavaScript error:
 line 0: uncaught exception: [Exception... "Access to property denied"  code: "1
010" nsresult: "0x805303f2 (NS_ERROR_DOM_PROP_ACCESS_DENIED)"  location: "<unkno
wn>"]

It would be nice if the message could specify which property I wasn't allowed 
to access (for example, "access to property x.document denied").  This would 
make it much easier to test security-related bugs and would also make it easier 
for webpage authors to figure out what's going on when Mozilla doesn't let them 
do something.

By the way, why does the "access denied" message above have so much extranous 
information (error codes and the constant name 
NS_ERROR_DOM_PROP_ACCESS_DENIED)?  Most javascript errors are much shorter:

JavaScript error:
 line 0: document.foopy has no properties

Comment 1

[Mitchell Stoltz (not reading bugmail)]

Mass changing milestone to Moz1.0 - stuff targeted for late spring/early summer.

Comment 2

[Mitchell Stoltz (not reading bugmail)]

*** Bug 79581 has been marked as a duplicate of this bug. ***

Comment 3

[Mitchell Stoltz (not reading bugmail)]

*** This bug has been marked as a duplicate of 83131 ***

Comment 4

[ckritzer (gone)]

Marking VERIFIED DUPLICATE.