log出現以下訊息
[warn] proxy: No protocol handler was valid for the URL /favicon.ico. If you are using a DSO version of mod_proxy, make sure the proxy submodules are included in the configuration using LoadModule.解決方式：
#啟用proxy_http模組 sudo a2enmod proxy_http #啟用proxy模組 sudo a2enmod proxy
重啟apache
sudo service apache2 restart