Apple-app-site-association file won't download

Question

I have uploaded my apple-app-site-association file to the root of my HTTPS web server After, I have added my Associated Domains in the xcode .I have followed apple universal link tutorial.

[SWC] ### Denying redirect to 'https://examplecustomdomain.com/apple-app-site-association/' (original 'https://examplecustomdomain.com/apple-app-site-association')

I have checked my device logs and I have seen error like above

Answer 1

I'm getting an awfully similar error:

[SWC] ### Denying redirect to 'https://www.<domain>/apple-app-site-association' (original 'https://<domain>/apple-app-site-association')

Quoting Apple's documentation:

• The file must be hosted on an https:// site with a valid certificate (for example, Safari must not issue a certificate warning when viewing the site).

• The file must not use any redirects.

• The file must have the MIME type application/pkcs7-mime.

My guess here is that -for both of us,- the file can be obtained, but it is after being redirected. The OS won't follow that redirection even if it is under the same domain; And, apparently, complains about it on the log.

Run curl -i https://<domain>/apple-app-site-association and you might see HTTP/1.1 301 Moved Permanently, with Location: https://www.<domain>/apple-app-site-association (or similar).

Answer 2

Ran into this same issue recently trying to implement Universal Links functionality. fbeeper gave a good response that helped me validate that there was indeed a redirect occurring.

However, it didn't help me in determining how to resolve the redirect issue. So for those like myself that are working with a Ruby on Rails based backend, here's an example of how to serve that pesky apple-app-site-association file in a way that meets all of Apple's requirements:

• Place your apple_app_site_association json file in the public folder
• In your config/routes.rb file, add a line like:

get '/apple-app-site-association' => 'home#apple_app_site_association'

• Then in the relevant controller file (home_controller in this example), define your method:

  def apple_app_site_association association_json = File.read(Rails.public_path + "apple-app-site-association") render :json => association_json, :content_type => "application/pkcs7-mime" end

Answer 3

It works only on https server.

Steps:

1) Create a file like apple_app_site_association without any extension under public directory of rails application with following contents

{
    "applinks": {
        "apps": [],
        "details": [
            {
                "appID": "<TEAM_DEVELOPER_ID>.<BUNDLE_IDENTIFIER>",
                "paths": [ "*" ]
            }
        ]
    }
}

2) routes.rb

get '/apple-app-site-association', to: 'pages#apple_app_site_association'

3) pages_controller.rb

def apple_app_site_association 
   association_json = File.read(Rails.public_path + "apple_app_site_association")
   render :json => association_json, :content_type => "application/json"
end

For example you check

http://18.216.158.101/apple-app-site-association

To test you can create an app on heroku.