Set images cache expiry time to 300000 seconds

src/webui/abstractrequesthandler.cpp

@@ -94,6 +94,9 @@ void AbstractRequestHandler::print_impl(const QByteArray& data, const QString& t
   if (!response_.headers.contains(HEADER_CONTENT_TYPE))
     response_.headers[HEADER_CONTENT_TYPE] = type;
 
+  if (type.indexOf("image") > -1)
+    response_.headers[HEADER_CACHE_CONTROL] = "max-age=3000000";
+
   response_.content += data;
 }
 

src/webui/httptypes.h

@@ -39,6 +39,7 @@ const QString HEADER_SET_COOKIE = "Set-Cookie";
 const QString HEADER_CONTENT_TYPE = "Content-Type";
 const QString HEADER_CONTENT_ENCODING = "Content-Encoding";
 const QString HEADER_CONTENT_LENGTH = "Content-Length";
+const QString HEADER_CACHE_CONTROL = "Cache-Control";
 
 const QString CONTENT_TYPE_CSS = "text/css; charset=UTF-8";
 const QString CONTENT_TYPE_GIF = "image/gif";