4.2.2. Modifying your Google Cloud Platform object bucket

Procedure

1. Use the following reference to create a JSON file for your specific CORS needs. For example:

   $ cat gcp_cors.json

   Example output

   [
       {
         "origin": ["*"],
         "method": ["GET"],
         "responseHeader": ["Authorization"],
         "maxAgeSeconds": 3600
       },
       {
         "origin": ["*"],
         "method": ["PUT"],
         "responseHeader": [
                 "Content-Type",
                 "x-goog-acl",
                 "origin"],
         "maxAgeSeconds": 3600
       }
   ]

2. Enter the following command to update your GCP storage bucket:

   $ gcloud storage buckets update gs://<bucket_name> --cors-file=./gcp_cors.json

   Example output

   Updating
     Completed 1

3. You can display the updated CORS configuration of your GCP bucket by running the following command:

   $ gcloud storage buckets describe gs://<bucket_name>  --format="default(cors)"

   Example output

   cors:
   - maxAgeSeconds: 3600
     method:
     - GET
     origin:
     - '*'
     responseHeader:
     - Authorization
   - maxAgeSeconds: 3600
     method:
     - PUT
     origin:
     - '*'
     responseHeader:
     - Content-Type
     - x-goog-acl
     - origin