Crash-on-connect with latest versions of both Chrome and Firefox

Using the git head version of websocket-sharp running on Mono 4.1, attempting to connect with Chrome 45 or Firefox 40 crashes the server with:

9/13/2015 11:54:49 AM|Fatal|WebSocket.processException|System.IO.IOException: Internal error (no progress possible) ReadInternal
                          at System.IO.Compression.DeflateStreamNative.CheckResult (Int32 result, System.String where) [0x000a5] in /home/jbabcock/src/mono/mcs/class/System/System.IO.Compression/DeflateStream.cs:475
                          at System.IO.Compression.DeflateStreamNative.ReadZStream (IntPtr buffer, Int32 length) [0x0000e] in /home/jbabcock/src/mono/mcs/class/System/System.IO.Compression/DeflateStream.cs:373
                          at System.IO.Compression.DeflateStream.ReadInternal (System.Byte[] array, Int32 offset, Int32 count) [0x0002f] in /home/jbabcock/src/mono/mcs/class/System/System.IO.Compression/DeflateStream.cs:123
                          at System.IO.Compression.DeflateStream.Read (System.Byte[] dest, Int32 dest_offset, Int32 count) [0x00086] in /home/jbabcock/src/mono/mcs/class/System/System.IO.Compression/DeflateStream.cs:143
                          at System.IO.Stream.InternalCopyTo (System.IO.Stream destination, Int32 bufferSize) [0x00015] in /home/jbabcock/src/mono/external/referencesource/mscorlib/system/io/stream.cs:227
                          at System.IO.Stream.CopyTo (System.IO.Stream destination) [0x00099] in /home/jbabcock/src/mono/external/referencesource/mscorlib/system/io/stream.cs:195
                          at (wrapper remoting-invoke-with-check) System.IO.Stream:CopyTo (System.IO.Stream)
                          at WebSocketSharp.Ext.decompress (System.IO.Stream stream) [0x0002f] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocket-sharp/Ext.cs:128
                          at WebSocketSharp.Ext.decompressToArray (System.IO.Stream stream) [0x00002] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocket-sharp/Ext.cs:137
                          at WebSocketSharp.Ext.decompress (System.Byte[] data) [0x0001d] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocket-sharp/Ext.cs:117
                          at WebSocketSharp.Ext.Decompress (System.Byte[] data, CompressionMethod method) [0x00009] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocketsharp/Ext.cs:373
                          at WebSocketSharp.WebSocket.processDataFrame (WebSocketSharp.WebSocketFrame frame) [0x00024] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocket-sharp/WebSocket.cs:1008
                          at WebSocketSharp.WebSocket.processReceivedFrame (WebSocketSharp.WebSocketFrame frame) [0x0004c] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocket-sharp/WebSocket.cs:1096
                          at WebSocketSharp.WebSocket+<startReceiving>c__AnonStorey3.<>m__1 (WebSocketSharp.WebSocketFrame frame) [0x00008] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocket-sharp/WebSocket.cs:1470
                          at WebSocketSharp.WebSocketFrame+<ReadAsync>c__AnonStorey3.<>m__0 (System.Byte[] header) [0x0003a] in /home/jbabcock/repositories/ncl/lib/websocketsharp/websocket-sharp/WebSocketFrame.cs:568
                          at WebSocketSharp.Ext+<ReadBytesAsync>c__AnonStorey3.<>m__0 (IAsyncResult ar) [0x0007b] in /home/jbabcock/repositories/ncl/lib/websocket-sharp/websocketsharp/Ext.cs:655

Setting WebSocketBehavior.IgnoreExtensions=true seems to prevent the error, but (I presume) at the expense of not having compression.

Reproduce the connection with websocket-sharp on Mono 4.1 using Chrome 45 or Firefox 40, then compare it with WebSocketBehavior.IgnoreExtensions=true. Start in Ext.cs around decompression and trace the calls through WebSocket.cs and WebSocketFrame.cs. Done means the server no longer crashes during the connection while the reported extension behavior is addressed.