title: Strapi v4 - images uploaded to S3 are not displayed in media gallery
body: <p>I'm trying out the new Strapi v4. I installed the provider-upload-aws-s3 to upload my images to S3 and configured it. I do see my images in the S3 bucket, but I do not see them in the Media Gallery. I inspected request and I see I'm getting this error:</p>
  <blockquote>
  <p>Content Security Policy: The page’s settings blocked the loading of a resource at {my img URL}.</p>
  </blockquote>
  <p>When trying to get the image directly in the browser with the same URL and the image is being loaded.</p>
  <p>I believe it has something to do with this warning (quote from Strapi documentation):</p>
  <blockquote>
  <p>Strapi has a default Security Middleware that has a very strict contentSecurityPolicy that limits loading images and media to &quot;'self'&quot; only, see the example configuration on the provider page or take a look at our middleare documentation for more information.</p>
  </blockquote>
  <p>But I'm not sure what to do with it and how to override it. So how do I make the uploaded to S3 images appear in the Media Gallery?</p>