# Crossdomain problem

**URL:** <https://forum.kirupa.com/t/crossdomain-problem/169316>\
**Category:** flash\
**Created:** [November 15, 2005, 10:55am UTC](https://forum.kirupa.com/t/crossdomain-problem/169316 "2005-11-15T10:55:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ag0609](https://avatars.discourse-cdn.com/v4/letter/a/df788c/32.png) [@ag0609](https://forum.kirupa.com/u/ag0609)\
**Post date:** [November 15, 2005, 10:55am UTC](https://forum.kirupa.com/t/crossdomain-problem/169316/1 "2005-11-15T10:55:54Z")

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I am trying to use with FileRefrence these day but I stucked in some security problems.

For example, I got a domain “[mydomain.com](http://mydomain.com)”…I can’t get the file from “[anysubdomain.mydomain.com](http://anysubdomain.mydomain.com)”.I tried to look in LivesDocs in MM, it says to use policy file for crossdomain;  
[font=Book Antiqua][http://livedocs.macromedia.com/flash/8/main/00002649.html](http://livedocs.macromedia.com/flash/8/main/00002649.html)[/font]

After creating the xml,I only can get permission to download file in [www.mydomain.com](http://www.mydomain.com)…

For finding the causes, I use listener.onSecurityError to trace eeror from FileRefrence…

“Security Sandbox Error” \<— thats all it trace back…

Any one know how to slove this? I am happy for any words.