meta-policy (strict policy files) question

I am having problems accessing 3rd party web services from my Flex app, and a couple of other posts are helping me with other issues, but I am getting a warning:

Warning: Domain MYDOMAINHERE does not specify a meta-policy. Applyin开发者_如何学Cg default meta-policy 'master-only'. This configuration is deprecated. See

http://www.adobe.com/go/strict_policy_files to fix this problem.

Do I need to fix this problem now, or should it work with the default meta-policy and I need to address this at some point?

Thanks very much for your responses.

If you want to remvove the warning, add this line in your crossdomain.xml :

<site-control permitted-cross-domain-policies="master-only"/>

However I recommand you to read this article first, because several meta-policies are available, and maybe you will choose something else thant the default "master-only" value.