Failing to load javascript resources

i am using Apache Authproxy and in proxy pass I am setting dashboard url like:
http://localhost:8082/d/u1l3KShmk/dashboardname/?orgId=1 instead of http://localhost:8082/
as i want the user to directly get redirected to the dashboard
The authentication works properly but the browser is not able to load javascript resources like grafana.light.css, vendor.js, manifest.js properly. This is how it looks like: