Igor's response doesn't mention hitting disk.
You can do it in memory

On Mon, Jun 27, 2011 at 9:17 PM, Douglas Ferguson
<[email protected]> wrote:
> Yeah.. I thought of that, but I liked the idea of streaming without hitting
> disc.
>
> On Mon, Jun 20, 2011 at 3:55 PM, Igor Vaynberg <[email protected]>wrote:
>
>> i dont think there is a way once you start streaming with an
>> attachment header...
>>
>> you can try rendering the page into memory and writing that out
>> instead - so then you at least know your page rendered ok.
>>
>> -igor
>>
>> On Mon, Jun 20, 2011 at 1:50 PM, Douglas Ferguson
>> <[email protected]> wrote:
>> > I built a page with markup type = xml and set the content type and
>> disposition so that the file will download.
>> >
>> > This is great except when there is a fatal exception thrown, my error
>> page is getting written to the downloaded file.
>> >
>> > Any ideas how make the browser load the error page?
>> >
>> > Only thought I had was to stream the file to disc and then send A) stream
>> to browser if there is no exception or B) forward to error page.
>> > But that kinda sucks as it is not truing streaming back to browser.
>> >
>> > D/
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