fixing flash policy handler, was not working after page reload

src/main/java/com/corundumstudio/socketio/transport/FlashPolicyHandler.java

@@ -27,16 +27,15 @@ import io.netty.util.CharsetUtil;
 @Sharable
 public class FlashPolicyHandler extends ChannelInboundHandlerAdapter {
 
-    private final ByteBuf requestBuffer = Unpooled.unreleasableBuffer(Unpooled.copiedBuffer(
-                            "<policy-file-request/>", CharsetUtil.UTF_8));
+    private final ByteBuf requestBuffer = Unpooled.copiedBuffer( "<policy-file-request/>", CharsetUtil.UTF_8);
 
-    private final ByteBuf responseBuffer = Unpooled.unreleasableBuffer(Unpooled.copiedBuffer(
+    private final ByteBuf responseBuffer = Unpooled.copiedBuffer(
                             "<?xml version=\"1.0\"?>"
                             + "<!DOCTYPE cross-domain-policy SYSTEM \"/xml/dtds/cross-domain-policy.dtd\">"
                             + "<cross-domain-policy> "
                             + "   <site-control permitted-cross-domain-policies=\"master-only\"/>"
                             + "   <allow-access-from domain=\"*\" to-ports=\"*\" />"
-                            + "</cross-domain-policy>", CharsetUtil.UTF_8));
+                            + "</cross-domain-policy>", CharsetUtil.UTF_8);
 
     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
@@ -45,7 +44,7 @@ public class FlashPolicyHandler extends ChannelInboundHandlerAdapter {
             ByteBuf data = message.slice(0, requestBuffer.readableBytes());
             if (data.equals(requestBuffer)) {
                 message.release();
-                ChannelFuture f = ctx.writeAndFlush(responseBuffer);
+                ChannelFuture f = ctx.writeAndFlush(Unpooled.copiedBuffer(responseBuffer));
                 f.addListener(ChannelFutureListener.CLOSE);
                 return;
             }