diff --git a/lib/WebSockets/src/WebSocketsServer.cpp b/lib/WebSockets/src/WebSocketsServer.cpp
index e8da8a3c..5c5abea8 100644
--- a/lib/WebSockets/src/WebSocketsServer.cpp
+++ b/lib/WebSockets/src/WebSocketsServer.cpp
@@ -225,13 +225,17 @@ bool WebSocketsServerCore::broadcastTXT(String & payload) {
  * @param headerToPayload bool  (see sendFrame for more details)
  * @return true if ok
  */
-bool WebSocketsServerCore::sendBIN(uint8_t num, uint8_t * payload, size_t length, bool fin, bool headerToPayload) {
+bool WebSocketsServerCore::sendBIN(uint8_t num, uint8_t * payload, size_t length, bool fin, bool continuation, bool headerToPayload) {
     if(num >= WEBSOCKETS_SERVER_CLIENT_MAX) {
         return false;
     }
     WSclient_t * client = &_clients[num];
     if(clientIsConnected(client)) {
-        return sendFrame(client, WSop_binary, payload, length, fin, headerToPayload);
+        if(continuation) {
+            return sendFrame(client, WSop_continuation, payload, length, fin, headerToPayload);
+        } else {
+            return sendFrame(client, WSop_binary, payload, length, fin, headerToPayload);
+        }
     }
     return false;
 }
diff --git a/lib/WebSockets/src/WebSocketsServer.h b/lib/WebSockets/src/WebSocketsServer.h
index 16461787..cd224dd2 100644
--- a/lib/WebSockets/src/WebSocketsServer.h
+++ b/lib/WebSockets/src/WebSocketsServer.h
@@ -65,7 +65,7 @@ class WebSocketsServerCore : protected WebSockets {
     bool broadcastTXT(const char * payload, size_t length = 0);
     bool broadcastTXT(String & payload);
 
-    bool sendBIN(uint8_t num, uint8_t * payload, size_t length, bool fin = true, bool headerToPayload = false);
+    bool sendBIN(uint8_t num, uint8_t * payload, size_t length, bool fin = true, bool continuation = false, bool headerToPayload = false);
     bool sendBIN(uint8_t num, const uint8_t * payload, size_t length);
 
     bool broadcastBIN(uint8_t * payload, size_t length, bool fin = true, bool headerToPayload = false);
diff --git a/src/WsServer.cpp b/src/WsServer.cpp
index d713b12e..7ed90a58 100644
--- a/src/WsServer.cpp
+++ b/src/WsServer.cpp
@@ -433,15 +433,23 @@ void sendBlobToWsStrHeader(const String& filename, const String& header, uint8_t
         size_t payloadSize = file.read(payloadBuf, maxPayloadSize);
         if (payloadSize) {
             size_t size = headerSize + payloadSize;
+
             bool fin = false;
-            if (i == 16) {
-                fin = true;
-            } else {
+            if (size == frameSize) {
                 fin = false;
+            } else {
+                fin = true;
             }
 
-            SerialPrint("I", "FS", String(size) + " " + String(fin) + " " + String(i));
-            standWebSocket.sendBIN(client_id, frameBuf, size, fin);
+            bool continuation = false;
+            if (i == 0) {
+                continuation = false;
+            } else {
+                continuation = true;
+            }
+
+            SerialPrint("I", "FS", String(i) + ") sz: " + String(size) + " fin: " + String(fin) + " cnt: " + String(continuation));
+            standWebSocket.sendBIN(client_id, frameBuf, size, fin, continuation);
         }
         i++;
     }