PBM: Authentication popup when uploading from a web dialog

[Vince C.]

Hi.

I've created a web application that requires authentication on all pages. One of
my pages is an ASP script that runs in a modal web dialog. It has a form to
upload a file. To prevent a new window from being spawned I've put an IFRAME as
the target of the form submission:

<form action="Image.a sp" method="post" enctype="multip art/form-data"
target="Results ">
...
<input type="file" size="30" name="ImageFile ">
...
</form>
<iframe src="about:blan k" name="Results" frameborder="0" ></iframe>


When I pick up a file from My Documents I get an authentication prompt as soon
as I submit the form. I don't get that authentication prompt when I run the
script in a normal window (i.e. in a non dialog window). If I select a file from
anywhere beyond the wwwRoot folder I don't get the authentication prompt either.

Is it normal or is it a bug in MSIE? I would have sworn IIS had nothing to do
with client-side file access when uploading files!

I'm running Windows XP SP1 with IE6 SP1.

Thanks,
Vince C.

[Matt Foster]

Re: Authentication popup when uploading from a web dialog

<iframe src="about:blan k" name="Results" frameborder="0" ></iframe>

What happens if you change the src to an ASP page which has the validation
in it?


"Vince C." <none@hotmail.c om> wrote in message
news:uhjXWMcGEH A.3776@tk2msftn gp13.phx.gbl...[color=blue]
> Hi.
>
> I've created a web application that requires authentication on all pages.[/color]
One of[color=blue]
> my pages is an ASP script that runs in a modal web dialog. It has a form[/color]
to[color=blue]
> upload a file. To prevent a new window from being spawned I've put an[/color]
IFRAME as[color=blue]
> the target of the form submission:
>
> <form action="Image.a sp" method="post" enctype="multip art/form-data"
> target="Results ">
> ...
> <input type="file" size="30" name="ImageFile ">
> ...
> </form>
> <iframe src="about:blan k" name="Results" frameborder="0" ></iframe>
>
>
> When I pick up a file from My Documents I get an authentication prompt as[/color]
soon[color=blue]
> as I submit the form. I don't get that authentication prompt when I run[/color]
the[color=blue]
> script in a normal window (i.e. in a non dialog window). If I select a[/color]
file from[color=blue]
> anywhere beyond the wwwRoot folder I don't get the authentication prompt[/color]
either.[color=blue]
>
> Is it normal or is it a bug in MSIE? I would have sworn IIS had nothing to[/color]
do[color=blue]
> with client-side file access when uploading files!
>
> I'm running Windows XP SP1 with IE6 SP1.
>
> Thanks,
> Vince C.
>
>[/color]