TypeError: Cannot read property 'headers' of undefined at Object.tools_ip (/www/tools.js:248:19) at /www/index.js:16:14 at Layer.handle [as handle_request] (/www/node_modules/express/lib/router/layer.js:95:5) at trim_prefix (/www/node_modules/express/lib/router/index.js:317:13) at /www/node_modules/express/lib/router/index.js:284:7 at param (/www/node_modules/express/lib/router/index.js:354:14) at param (/www/node_modules/express/lib/router/index.js:365:14) at Function.process_params (/www/node_modules/express/lib/router/index.js:410:3) at next (/www/node_modules/express/lib/router/index.js:275:10) at expressInit (/www/node_modules/express/lib/middlewa