jwt token was sent out as bytes casted to str insteadof a proper string

minor/crypto.py

@@ -55,4 +55,4 @@ def issue_token(email, secret):
     payload["exp"] = datetime.utcnow() + timedelta(minutes=30)
     # TODO maybe add jti?
     token = jwt.encode(payload, secret, algorithm='HS256')
-    return str(token)
+    return token.decode("utf-8")