I am working with universal app links. I had put my apple-app-site-association on my server root https://www.example.net/
It works fine for all links except https://www.portal.example.net/
When i validate this link in https://search.developer.apple.com/appsearch-validation-tool it gives fetch request timeout.
Note : In portal we redirect page to website homepage (https://www.example.net/)
This is expected, due to the design of the Universal Links specification.
Here's why:
https://www.example.net/andhttps://www.portal.example.net/are completely different subdomains ofhttps://example.net/.The Universal Links specification says each subdomain must be verified with its own
apple-app-site-associationfile, which means a file hosted athttps://www.example.net/apple-app-site-associationwill not work for any link onhttps://www.portal.example.net/. Redirects are not followed.To fix this, simply host a file at
https://www.portal.example.net/apple-app-site-associationwith no redirects.