xhr_streaming/xhr_polling protocols are not working

16:56:23,806 INFO  [org.jboss.aerogear.simplepush.server.netty.UserAgentReaperHandler] (defaultEventExecutorGroup-2-1) Creating UserAgentReaper job : 604800000
16:56:24,044 INFO  [org.jboss.aerogear.simplepush.server.netty.SimplePushSockJSService] (nioEventLoopGroup-4-2) SimplePushSockJSServer onOpen
16:56:24,045 ERROR [org.jboss.aerogear.io.netty.handler.codec.sockjs.handlers.SockJsHandler] (nioEventLoopGroup-4-2) exception caught:: java.io.IOException: Connection reset by peer
	at sun.nio.ch.FileDispatcherImpl.read0(Native Method) [rt.jar:1.7.0_51]
	at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) [rt.jar:1.7.0_51]
	at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) [rt.jar:1.7.0_51]
	at sun.nio.ch.IOUtil.read(IOUtil.java:197) [rt.jar:1.7.0_51]
	at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379) [rt.jar:1.7.0_51]
	at io.netty.buffer.UnpooledHeapByteBuf.setBytes(UnpooledHeapByteBuf.java:237) [netty-all-4.0.8.Final.jar:]
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:867) [netty-all-4.0.8.Final.jar:]
	at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:208) [netty-all-4.0.8.Final.jar:]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:87) [netty-all-4.0.8.Final.jar:]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:478) [netty-all-4.0.8.Final.jar:]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447) [netty-all-4.0.8.Final.jar:]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341) [netty-all-4.0.8.Final.jar:]
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [netty-all-4.0.8.Final.jar:]
	at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_51]

net::ERR_INVALID_CHUNKED_ENCODING