I’m new to Google Cloud Storage (GCS). I’ve been trying to setup my personal blog website. This website will be using images as well. For hosting images, I use GCS bucket with a load balancer with CDN caching.

When I try to load any blog post with images, the images from GCS gives 403 forbidden error when v3/signer API fails to authenticate. I want to make sure that user visiting my website without any Google login should be able to view images on my blog post.

Recently I did following with my GCS bucket:

• Added CORS policy.

[
    {
        "origin": ["https://link-to-my-blogpost.com"],
        "responseHeader": ["Content-Type"],
        "method": ["GET"],
        "maxAgeSeconds": 3600
    }
]

• Updated bucket permissions (access control) to fine-grained object level ACLs. Earlier it was set to uniform.

• After this I ran a command to update ACL of bucket:

  gsutil -m acl -r set public-read gs://my-bucket-name 
  

• Public access is subject to object ACLs.

For reference attaching screenshot of the error:

I’m still facing 403 forbidden error due to which images are not getting loaded on my website. It would be a great help if anyone can help me figure out what I’m missing. Thanks!