null reference issue for dojo editor on FireFox 4(Caused by getComputedStyle)

[hengly]

Summary: test1.html cotains a iframe,the iframe is hiddened.iframe's src is set to test_Editor.html.

steps:

1.run the test1.html on Firefox

Expected: There is no javascript error. Actual: It call the s is null javascript error.

It works fine on ie.I found the issue caused by the function in dojo,

gcs = function(node){

return node.nodeType == 1?node.ownerDocument.defaultView.getComputedStyle('node',null):{};

}

The node.ownerDocument.defaultView.getComputedStyle('node',null) will get a null reference when the iframe is hiddened.

[bill]

The editor doesn't support being initialized while hidden. Probably we already have other tickets for that, closed as wontfix. Jared?

[Jared Jurkiewicz]

It's a limitation of using an iframe design. You can't initialize it when they're hidden in various browsers. This is documented behavior:

http://dojotoolkit.org/reference-guide/dijit/Editor.html#dijit-editor

Second listed limitation.