How can Amazon S3 bucket permissions be set so every time I save a file read permissions stay public?

Question

I'm using the Coda app at add, edit, and save files on my S3 bucket.

The bucket has static web hosting enabled.

Every time I upload or save a file, the permissions automatically change to restrict the "world" from reading the file.

How can Amazon S3 bucket permissions be set so every time I save a file read permissions stay public?

Answer 1

Instead of adding a new bucket policy, I fixed my problem by aliasing a domain name to my bucket. When I access bucket files through the alias, I'm seeing no permission errors.