Add crossdomain.xml for Flash testing.

Requested by the YouTube team.

Author: lgarron

common/common.conf

@@ -21,6 +21,11 @@ location /icons {
   proxy_cache_valid 200 1h;
 }
 
+location = /crossdomain.xml {
+  root /var/www/badssl/common;
+  try_files $uri $uri/ =404;
+}
+
 location = /robots.txt {
   root /var/www/badssl/common;
   try_files $uri $uri/ =404;

common/crossdomain.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0"?>
+<!-- https://*.badssl.com/crossdomain.xml -->
+<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
+<cross-domain-policy>
+  <allow-access-from domain="*.youtube.com" />
+  <allow-access-from domain="s.ytimg.com" />
+</cross-domain-policy>