What should the developer do to prevent the browser from blocking the JavaScript files and web fonts?
Create four access points that allow access to the central S3 bucket. Assign an access point to each web application bucket.
Create a bucket policy that allows access to the central S3 bucket. Attach the bucket policy to the central S3 bucket
Create a cross-origin resource sharing (CORS) configuration that allows access to the central S3 bucket. Add the CORS configuration to the central S3 bucket.
Create a Content-MD5 header that provides a message integrity check for the central S3 bucket. Insert the Content-MD5 header for each web application request.
Explanations:
Creating access points would help manage access to the S3 buckets but does not address the issue of browsers blocking JavaScript files and web fonts due to CORS policies. Access points are used for managing permissions and routing rather than addressing cross-origin requests.
While a bucket policy can control access to the S3 bucket, it does not specifically address CORS issues. Even if the policy allows access, browsers will block requests if CORS is not correctly configured. Therefore, simply attaching a bucket policy is insufficient for resolving the blocking issue.
Creating a CORS configuration for the central S3 bucket is the correct approach. CORS allows web applications to request resources from a different origin (in this case, the central S3 bucket), and configuring it properly will prevent the browser from blocking the JavaScript files and web fonts. The CORS configuration needs to specify the allowed origins, methods, and headers.
The Content-MD5 header is used for message integrity checks and is not related to CORS. It does not prevent browsers from blocking resources due to CORS policy violations. Therefore, this option does not address the underlying problem.
My best guess is:
Create a cross-origin resource sharing (CORS) configuration that allows access to the central S3 bucket. Add the CORS configuration to the central S3 bucket.