234197 - alert() called without an argument throws an exception

Status: RESOLVED DUPLICATE of bug 98185

(Core :: JavaScript Engine, defect)

Description

[Pierre Scemla]

User-Agent:       
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040206 Firefox/0.8

When the alert() function is called without an argument, there is the following
error message in the javascript console (and no alert box is displayed):

Error: uncaught exception: [Exception... "Not enough arguments
[nsIDOMWindowInternal.alert]"  nsresult: "0x80570001
(NS_ERROR_XPC_NOT_ENOUGH_ARGS)"  location: "JS frame :: javascript: alert() ::
<TOP_LEVEL> :: line 1"  data: no]

Reproducible: Always
Steps to Reproduce:
1.in the javascript console, type: alert()
2.
3.

Actual Results:  
Error: uncaught exception: [Exception... "Not enough arguments
[nsIDOMWindowInternal.alert]"  nsresult: "0x80570001
(NS_ERROR_XPC_NOT_ENOUGH_ARGS)"  location: "JS frame :: javascript: alert() ::
<TOP_LEVEL> :: line 1"  data: no]

Expected Results:  
The browser should display a alert box xith an empty message (this is the IE
behavior).

tested with FireBird 0.8 on WIndows 2000 and Mozilla 1.7a on MacOS

Comment 1

[Boris Zbarsky [:bzbarsky]]

*** This bug has been marked as a duplicate of 98185 ***