Cool, I'll give it a shot Igor.

Thanks,

Andrew

On 12/15/06, Igor Vaynberg <[EMAIL PROTECTED]> wrote:

try removing firebug from firefox, it has caused me to have this error in
the past

-igor


On 12/15/06, Andrew Berman < [EMAIL PROTECTED]> wrote:

> Hello,
>
> I repeatedly get the following error: t has no properties  (got the info
> using Firebug with Firefox)
>
> It bombs on line 586 of wicket-ajax.js:
>
> if (t.readyState == 4)
>
> Looks like t which is set to this.transport is null.  There are many
> situations where this happens in my application.  One instance of this is
> where I have two dropdowns, the first dropdown has an onchange event where
> it updates the second dropdown.  If the second dropdown yields nothing in
> the list (except Choose One), it results in this error.  Also, if you select
> Choose One in the first dropdown it yields this error.  Another instance
> when I get this error is when I perform an AJAX request, then make some
> other normal request, then click the back button and attempt to make another
> AJAX request. There are other cases where I seem to be getting this error as
> well.  I think it only started happening when I upgraded to 1.2.3.
>
> Any thoughts?
>
> --Andrew
>
>
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