ios: Universal links not working on iOS 10

Question

I'm trying to integrate universal links in my iOS app. So whenever someone taps on <myapp>.herokuapp.com/content gets redirected directly to app. I followed this guide for setup. I did the following setup but cannot get it working. I also checked other threads on stackoverflow but none of them solved the issue.

• Added Associated Domains in Capabilities Tab on my app's target. Added two domains: activitycontinuation:<myapp>.herokuapp.com and applinks:<myapp>.herokuapp.com.
• In Build Phases > Copy Bundle Resources added the file .entitlements.
• Got teamId from https://developer.apple.com/account/#/membership

• On my website added a route for apple-app-site-association at https://<myapp>.herokuapp.com/apple-app-site-association which returns the following json:

  {
      "applinks": {
          "apps": [],
          "details": [
              {
                  "appID": "<teamId>.<bundleId>.dev",
                  "paths": [ "*" ]
              },
              {
                  "appID": "<teamId>.<bundleId>",
                  "paths": [ "*" ]
              }
          ]
      },
      "activitycontinuation": {
          "apps": [
              "<teamId>.<bundleId>.dev",
              "<teamId>.<bundleId>"
          ]
      }
  }
  

• Installed app from Xcode to iPhone 6s Plus (physical device) with bundle id <bundleId>.dev and copied link https://<myapp>.herokuapp.com/content to Notes but it opens in Safari.

Answer 1

Fixed the issue. The problem was that I was testing with Debug configuration. When I tried with Release build everything is now working fine.