Unable to view images in web view for private site

It was reported in 3624089-zen that the user wasn't able to view the images on the app's web view when the site is set to Private. They were able to view the images when they changed the site's privacy setting to Public.

Expected behavior

I would expect to be able to view the images on the site through the web view on the app even though my site is set to Private.

Actual behavior

I wasn't able to see the images on the site when it is set to Private.

Steps to reproduce the behavior

1. Change a site (WordPress.com Simple site) privacy setting to Private at My Site > Settings > Privacy
2. Go to My Site > View Site
3. See the images on the site do not load
4. Switch the site's privacy to Public
5. Go to My Site > View Site
6. Notice the images on the site loading fine

Note: Reported and tested on WordPress.com Simple sites with custom domains.

Tested on iPhone SE, iOS 14.3, WPiOS 16.3. Reported in the ticket on iPhone 12 Pro Max, iOS 14.2, WPiOS 16.3

Start by reproducing the issue on an iPhone with a private WordPress.com Simple site using a custom domain, following the My Site > View Site steps. Compare image loading with the site set to Public and Private; done means images load in the app's web view while the site remains Private.