Use in Environments that Don't Support Expandos

Reported by:	john	Owned by:
Priority:	major	Milestone:
Component:	core	Version:	1.3.1
Keywords:	needsreview	Cc:
Blocked by:		Blocking:

Description

From the jquery-dev list:

does anybody have any experience/success with running jQuery inside a

Mozilla Firefox sandbox, in which the global window object is a deep

XPCNativeWrapper of the underlying DOM?

In this environment, 'expando' properties - e.g., properties not

defined by W3C DOM may be added only to 'window' and 'document', but

not to any other DOM element. For example, the following code:

document.expando = 'Hello';

document.body.expando = 'World';

alert(document.expando + ' ' + document.body.expando);

would alert 'Hello undefined'.

Is it possible to use jQuery if DOM elements do not support expando properties?

Attachments (0)

Change History (4)

Changed July 15, 2009 08:59AM UTC by yehuda comment:1

milestone:	1.3.2 → 1.3.3

Changed September 07, 2009 10:21PM UTC by yacoob comment:2

This feature is relevant for anyone that wants to write Greasemonkey script including jQuery.

As of 1.3.2, the support seems to be partial. Inside a GM script, I was able to set an event handler via .focus(function() {...}) but I wasn't able to trigger an event via .focus(). I've ended up using dispatchEvent() for triggering an event:

var evt = document.createEvent("HTMLEvents");

evt.initEvent('focus', true, true);

$('div#bla')[0].dispatchEvent(evt);

Changed November 19, 2010 01:22AM UTC by dmethvin comment:3

keywords:	→ needsreview
milestone:	1.4
status:	new → open

Changed April 16, 2011 09:20PM UTC by john comment:4

resolution:	→ wontfix
status:	open → closed

I don't think that this is something that we're going to be able to reasonably implement - expandos are a rather critical part of having jQuery work with DOM nodes.

Side navigation