AWS S3 CORS Policy For Public Access

A simple CORS policy for AWS S3 bucket to access any file from external sources. I use this policy for my images hosted on https://travel.ishaanx.com

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration
    xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <CORSRule>
        <AllowedOrigin>*.example.com</AllowedOrigin>
        <AllowedMethod>HEAD</AllowedMethod>
        <AllowedMethod>GET</AllowedMethod>
        <MaxAgeSeconds>3000</MaxAgeSeconds>
        <ExposeHeader>x-amz-server-side-encryption</ExposeHeader>
        <ExposeHeader>x-amz-request-id</ExposeHeader>
        <ExposeHeader>x-amz-id-2</ExposeHeader>
        <ExposeHeader>Access-Control-Allow-Origin</ExposeHeader>
        <ExposeHeader>Access-Control-Allow-Methods</ExposeHeader>
        <AllowedHeader>*</AllowedHeader>
    </CORSRule>
</CORSConfiguration>

Use cases

- To create your own CDN for files such as public images, .CSS, .JS, .JSON.