kite: make done channels bufferred to avoid potential leaks

Author: rjeczalik

client.go

@@ -436,7 +436,7 @@ func (c *Client) receiveData() ([]byte, error) {
 		return nil, errors.New("not connected")
 	}
 
-	done := make(chan recv)
+	done := make(chan recv, 1)
 
 	go func() {
 		msg, err := session.Recv()

sockjsclient/xhr.go

@@ -379,7 +379,7 @@ func (fr *frameReader) readFrame() {
 		c   byte
 		err error
 	}
-	done := make(chan result)
+	done := make(chan result, 1)
 
 	go func() {
 		c, err := fr.r.ReadByte()