310344 - window instanceof AbstractView throws exception

Status: RESOLVED DUPLICATE of bug 327156

(Core :: DOM: CSS Object Model, defect)

Description

[Yuh-Ruey Chen]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b5) Gecko/20050928 Firefox/1.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b5) Gecko/20050928 Firefox/1.4

The expression |window instanceof AbstractView| throws an exception.

Reproducible: Always

Steps to Reproduce:
window instanceof AbstractView

Actual Results:  
Error: uncaught exception: null


Expected Results:  
true

Comment 1

[Adam Guthrie]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20050928
Firefox/1.6a1 ID:2005092815

javascript: alert(window instanceof Object); pops up an alert that says "true"
for me. Related to bug 304423?

Comment 2

[Yuh-Ruey Chen]

Attachment: testcase

window instanceof AbstractView throws null

Comment 3

[Yuh-Ruey Chen]

Attachment: clearer testcase

Comment 4

[Adam Guthrie]

FWIW, splitwindow did not regress this.

Comment 5

[Yuh-Ruey Chen]

Shouldn't be a regression. This bug exists on the 1.7 branch as well:

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716
Firefox/1.0.6

Comment 6

[Boris Zbarsky [:bzbarsky]]

Marking duplicate of later bug with more info...

*** This bug has been marked as a duplicate of 327156 ***