fix echart

deploy/nginx/default.conf

@@ -30,6 +30,7 @@ server {
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header X-Forwarded-Proto $scheme;
-    proxy_hide_header Etag;
+    proxy_hide_header etag;
     add_header Cache-Control "no-store, no-cache" always;
+    }
 }