Sandbox violation on second socket send

Question

Hi,

I have a Flex client using a Flash binary (TCP) socket for communication with a Java server. I have a localhost (Apache) server providing a crossdomain.xml file which is wide open just while I am testing.

My code successfully loads the policy file on startup.

I then connect the socket to the server without any difficulty and send a message and get a response. All good so far.

However, when I send a second message through the same socket I get a pause of about 12 seconds then a sandbox violation error:

Security Error: Error #2048: Security sandbox violation: file:///C:/apache_root/ttt1/ttt1.swf cannot load data from localhost:45455.

This is the same port and socket through which the first message succeeded.

I tried re-loading the policy file before every send, but I get the same result.

Any idea why this might be happening? I clearly have an open socket at one point. I am flushing the socket after each send and I tried doing that after each read as well, but the same result.

Thanks in advance

EDIT:
If I recreate the socket prior to every call my code works. I am struggling to believe that this is correct, but maybe there is a Socket setting I am missing.

Answer 1

I think it depends on the sandbox-policy you used in the compilation process of your swf not on your crossdomain.xml... maybe this docu helps you:Security sandboxes

But I'm not 100% sure

Answer 2

I recently spent quite a bit of time dealing both with socket policy files and crossdomain policy files. Please post both of your policy files so I can have a bit more information to help.

Answer 3

This sort of sounds like a cache problem. Perhaps you're pulling the first socket connection out of cache and the second one gets rejected because it's getting a 200 from the server.

You might want to add localhost to your flash security exceptions list for debugging. that will quiet the sandbox errors until you get your piece to it's production environment.