574452 - Exception fills my Error Console: (NS_NOINTERFACE) [nsISupports.QueryInterface]" nsresult: "0x80004002 (NS_NOINTERFACE)"

Status: RESOLVED FIXED

(DevTools :: General, defect)

Description

[Marcia Knous [:marcia]]

Seen while running Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.3a6pre) Gecko/20100624 Minefield/3.7a6pre

STR:
1. Tools | Heads up Display
2. Reload a bug

This shows in the Error console repeatedly:

Error: [Exception... "Component returned failure code: 0x80004002 (NS_NOINTERFACE) [nsISupports.QueryInterface]"  nsresult: "0x80004002 (NS_NOINTERFACE)"  location: "JS frame :: resource://gre/modules/HUDService.jsm :: HCO_observe :: line 3294"  data: no]
Source File: resource://gre/modules/HUDService.jsm
Line: 3294

When I try to clear the console, one of these instances remains and cannot be cleared.

Comment 1

[David Dahl :ddahl]

There are some exceptions being thrown in the flow control of the network observer than need to be noop'd here.

Comment 3

[David Dahl :ddahl]

Looks like we are trying to QI to an nsIScriptError and are failing. Need to wrap with try.

Comment 4

[:Gavin Sharp [email: [e-mail]]]

3293     if (aSubject instanceof Ci.nsIConsoleMessage) {
3294       var err = aSubject.QueryInterface(Ci.nsIScriptError);

Looks to me like this justs want to change the instanceof check to be for nsIScriptError, and remove the QI.

Comment 5

[timeless]

Attachment: patch

Comment 6

[timeless]

http://hg.mozilla.org/mozilla-central/rev/f97c5328098b