google cloud platform – facing a issue while hosting a static app in private gcp bucket [gcp]

i followed this article “https://medium.com/@thetechbytes/private-gcs-bucket-access-through-google-cloud-cdn-430d940ebad9” to hosting a static app in private bucket.

after follows the step and configured i can able to get the response from the bucket throug load balancer ip,

Now the issue is, instead of showing website content, it shows the objects of the buckets, the shows the website when manually type loadbalancer-ip/index.html, how to fix this issue

Need a answer to host a static app in private gcp bucket