Suppose there is a built-in Flash object on the site. Is it possible to perform the following procedure: 1. Submit a specific URL to it; 2. it stores the content (about 10 mb.) In memory; 3. then sends this content to another address.
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Player security policy will not let him do it. The server sitting on the URL must produce the Crossdomain file.
http://quarantine.ucoz.ru/blog/crossdomain_xml_i_flash/2010-10-15-7
http://help.adobe.com/en_RU/FlashPlatform/reference/actionscript/3/flash/system/Security.html
Source: https://ru.stackoverflow.com/questions/207366/