accept websocket close code 1014 (bad gateway)

include/boost/beast/websocket/detail/frame.hpp

@@ -106,13 +106,13 @@ is_valid_close_code(std::uint16_t v)
     case close_code::internal_error:    // 1011
     case close_code::service_restart:   // 1012
     case close_code::try_again_later:   // 1013
+    case close_code::bad_gateway:       // 1014
         return true;
 
     // explicitly reserved
     case close_code::reserved1:         // 1004
     case close_code::no_status:         // 1005
     case close_code::abnormal:          // 1006
-    case close_code::reserved2:         // 1014
     case close_code::reserved3:         // 1015
         return false;
     }

include/boost/beast/websocket/rfc6455.hpp

@@ -107,6 +107,9 @@ enum close_code : std::uint16_t
     /// The server is terminating the connection due to a temporary condition, e.g. it is overloaded and is casting off some of its clients.
     try_again_later = 1013,
 
+    /// The endpoint, acting as a gateway or proxy, received an invalid response from an upstream server, analogous to HTTP status 502.
+    bad_gateway     = 1014,
+
     //----
     //
     // The following are illegal on the wire
@@ -137,13 +140,7 @@ enum close_code : std::uint16_t
     abnormal        = 1006,
 
     /** Reserved for future use by the WebSocket standard.
-        
-        This code is reserved and may not be sent.
-    */
-    reserved2       = 1014,
 
-    /** Reserved for future use by the WebSocket standard.
-       
         This code is reserved and may not be sent.
     */
     reserved3       = 1015

test/beast/websocket/frame.cpp

@@ -27,11 +27,13 @@ public:
         BEAST_EXPECT(! is_valid_close_code(1004));
         BEAST_EXPECT(! is_valid_close_code(1005));
         BEAST_EXPECT(! is_valid_close_code(1006));
+        BEAST_EXPECT(! is_valid_close_code(1015));
         BEAST_EXPECT(! is_valid_close_code(1016));
         BEAST_EXPECT(! is_valid_close_code(2000));
         BEAST_EXPECT(! is_valid_close_code(2999));
         BEAST_EXPECT(is_valid_close_code(1000));
         BEAST_EXPECT(is_valid_close_code(1002));
+        BEAST_EXPECT(is_valid_close_code(1014));
         BEAST_EXPECT(is_valid_close_code(3000));
         BEAST_EXPECT(is_valid_close_code(4000));
         BEAST_EXPECT(is_valid_close_code(5000));