diff --git a/winixd/core/header.h b/winixd/core/header.h
index 7ccbd41..3b8a3b2 100644
--- a/winixd/core/header.h
+++ b/winixd/core/header.h
@@ -52,6 +52,7 @@ public:
 	static constexpr const wchar_t * content_type 				= L"Content-Type";
 	static constexpr const wchar_t * accept 					= L"Accept";
 	static constexpr const wchar_t * accept_language			= L"Accept-Language";
+	static constexpr const wchar_t * authorization 				= L"Authorization";
 
 	/*
 	 * headers' names lower case
@@ -87,6 +88,7 @@ public:
 	static constexpr const wchar_t * multipart_form_data 				= L"multipart/form-data";
 
 	static constexpr const wchar_t * bearer 					= L"Bearer";
+	static constexpr const wchar_t * winix 						= L"Winix";
 
 
 	static const int status_200_ok = 200;
diff --git a/winixd/core/sessionidmanager.cpp b/winixd/core/sessionidmanager.cpp
index 8d2c1d7..2cd4812 100644
--- a/winixd/core/sessionidmanager.cpp
+++ b/winixd/core/sessionidmanager.cpp
@@ -433,6 +433,18 @@ void SessionIdManager::CopyString(const std::wstring & in, std::string & out)
 }
 
 
+void SessionIdManager::CopyString(const std::wstring_view & in, std::string & out)
+{
+	out.clear();
+
+	if( out.capacity() < in.size() )
+		out.reserve(in.size());
+
+	for(size_t i=0 ; i<in.size() ; ++i)
+		out += in[i];
+}
+
+
 
 bool SessionIdManager::Encode(std::string & str)
 {
@@ -613,7 +625,7 @@ bool SessionIdManager::DecodeToken(size_t & id, unsigned int & index)
 }
 
 
-bool SessionIdManager::DecodeToken(const std::wstring & token, size_t & id, unsigned int & index)
+bool SessionIdManager::DecodeToken(const std::wstring_view & token, size_t & id, unsigned int & index)
 {
 	if( !was_inited )
 		return false;
diff --git a/winixd/core/sessionidmanager.h b/winixd/core/sessionidmanager.h
index 6c07718..c22bd32 100644
--- a/winixd/core/sessionidmanager.h
+++ b/winixd/core/sessionidmanager.h
@@ -133,7 +133,7 @@ public:
 	 *
 	 */
 	bool EncodeToken(size_t id, unsigned int index, time_t cur_utc_time, std::wstring & token);
-	bool DecodeToken(const std::wstring & token, size_t & id, unsigned int & index);
+	bool DecodeToken(const std::wstring_view & token, size_t & id, unsigned int & index);
 
 
 private:
@@ -170,6 +170,7 @@ private:
 	void AppendXor(std::string & str);
 	void CopyString(const std::string & in, std::wstring & out);
 	void CopyString(const std::wstring & in, std::string & out);
+	void CopyString(const std::wstring_view & in, std::string & out);
 	bool Encode(std::string & str);
 	bool DecodeToken(size_t key, size_t & id, unsigned int & index);
 	bool DecodeToken(size_t & id, unsigned int & index);