Adobe Flex, check for server error on file download?

Question

I'd like to have Flex trigger the browser to download a PDF file from a server, but if anything goes wrong with the script that generates the file I want to be able to throw a meaningful error from Flex. Is it at all possible to try to open the URL in Flex first and check the response's HTTP status or Content-Type, then if it's a PDF file and not an error pass it up to the browser to display the "Save File..." dialog?

Answer 1

You can use URLRequest and URLLoader classes to send the request. Then you'll be able to catch an error.