I've already landed the changes discussed (tweaking the logic -  I
landed the wrong patch, missed the '!') and making sure that there's a
try/catch.

http://github.com/jquery/jquery/commit/3f648c4e3abe236b8ec6a19822313be794e5a9df

I tested in Firefox, IE 6 & 7 with ActiveX disabled. IE 6 just stops,
but doesn't throw an exception, IE 7 runs all the tests (since it has
an XMLHttpRequest implementation).

--John



On Tue, Jan 5, 2010 at 11:31 AM, Matt <m...@thekrusefamily.com> wrote:
> On Jan 5, 10:04 am, John Resig <jere...@gmail.com> wrote:
>> The current logic is imperfect (in that, theoretically, someone could
>> be trying to use jQuery on a local file, in IE 7, with ActiveX
>> disabled and it would error out) but for now that's something that I
>> can live with.
>
> Why live with it? It fails in IE6 under the same conditions as well.
> That, as far as I can tell, should be a jQuery-supported environment.
>
> It also fails under FF, local file because your logic is incorrect:
>
> return window.XMLHttpRequest && window.location.protocol !== "file:"
> || window.ActiveXObject ?
>  new window.XMLHttpRequest() :
>  new window.ActiveXObject("Microsoft.XMLHTTP");
>
> In FF:
>  return (true && false || false)? <ignored> : new window.ActiveXObject
> ("Microsoft.XMLHTTP")
> ERROR:
>  "window.ActiveXObject is not a constructor"
>
> Matt Kruse
>
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