Do you change the path of htdocs?
this if my config
"rpc": {
"enable": false,
"rpc_user": "",
"rpc_password": "",
"rpc_endpoint": "127.0.0.1:0",
"httpd_endpoint": "127.0.0.1:0",
"htdocs": "./htdocs"
my webpage path is here : /home/alt/workspace/bitsharesx/programs/web_wallet/generated/
so I run this
ln -sf /home/alt/workspace/bitsharesx/programs/web_wallet/generated/ ./htdocs