Added try-catch in server_http.hpp around the http_version. If it fails, it is set to 1.1

server_http.hpp

@@ -739,7 +739,13 @@ namespace SimpleWeb {
                 return;
               }
             }
-            if(std::stof(response->session->request->http_version) >= 1.1) {
+            float http_VersionF;
+            try{
+                http_VersionF = std::stof(response->session->request->http_version);
+            }catch (std::exception e){
+                http_VersionF = 1.1;
+            }
+            if(http_VersionF >= 1.1) {
               auto new_session = std::make_shared<Session>(this->config.max_request_streambuf_size, response->session->connection);
               this->read(new_session);
               return;