Open Bug 613273 Opened 14 years ago Updated 2 years ago

NodeList constructor is Object, while for example body-element has HTMLBodyElement

Categories

(Firefox :: General, defect)

Product:
Firefox
Component:
General
Version:
4.0 Branch
Platform:
x86
Windows 7
Type:
defect

Tracking

()

Status:
UNCONFIRMED

People

(Reporter: rikmeijer, Unassigned)

Details

User-Agent:       Mozilla/5.0 (Windows NT 6.1; rv:2.0b7) Gecko/20100101 Firefox/4.0b7
Build Identifier: Mozilla/5.0 (Windows NT 6.1; rv:2.0b7) Gecko/20100101 Firefox/4.0b7

De NodeList constructor seems to be inconsistent with other objects constructors. When I try to extract the contructor its name from a NodeList it returns Object, while in other cases (for example String or the BODY-element) correctly returns String or HTMLBodyElement repectively.


Reproducible: Always

Steps to Reproduce:
1. Paste supplied HTML into a test file
2. Open file in FF4
3. See results in Firebug console
Actual Results:  
Firebug console:
Object()
HTMLBodyElement {}

Expected Results:  
Firebug console:
NodeList {}
HTMLBodyElement {}

<!doctype html>
<html>
	<head>
		<title>NodeList test</title>
		<meta http-equiv="content-type" content="text/html; charset=utf-8" />
	</head>
	<body>

	</body>

	<script type="text/javascript">
		console.log(window.document.getElementsByTagName('body').constructor);
		console.log(window.document.getElementsByTagName('body')[0].constructor);
	</script>
</html>
Are you still seeing this with Firefox 4 final?
Version: unspecified → 4.0 Branch
Yes, the problem can still be reproduced using supplied HTML in FF 4.0.1
This bug was reported using a pre-release version of Firefox 4. Now that Firefox 4.0.1 final has been released, can you please update and retest your bug? A fresh profile would be a good starting place to test, 
http://support.mozilla.com/kb/Managing+profiles. If you continue to see the issue, can you please update this bug with your results?

Filter: firefox4prebugsunco
Severity: normal → S3
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