title: Why is Deep Link Web URL query is empty
body: <p>Using Flutter and Firebase dynamic links, I am able to create a link. When it is clicked it opens the app but there is no link data, and no callbacks that a link was clicked is fired. Instead in the Xcode logs I get <code>Deep Link Web URL query is empty</code> Link is copied from the app into Notes, then clicked. Is there anything that I am missing, or what else can I check to get this working?</p>
  
  <p><a href="https://stackoverflow.com/questions/52836008/firebase-deep-link-web-url-query-is-empty-ios">Firebase Deep Link Web URL query is empty - iOS</a>
  Checked this relevant post, but installing the required pod dependencies is not the solution as you can see below in the pod install logs.</p>
  
  <p>Flutter Doctor</p>
  
  <pre><code>[✓] Flutter (Channel stable, v1.12.13+hotfix.8, on Mac OS X 10.15 19A582a, locale en-US)
  [!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
      ✗ Android license status unknown.
        Try re-installing or updating your Android SDK Manager.
        See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed
        instructions.
  [✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
  [✓] Android Studio (version 3.5)
  [✓] Android Studio (version 3.5)
  [✓] IntelliJ IDEA Ultimate Edition (version 2019.1.4)
  [!] IntelliJ IDEA Community Edition (version 2019.1.3)
      ✗ Flutter plugin not installed; this adds Flutter specific functionality.
      ✗ Dart plugin not installed; this adds Dart specific functionality.
  [✓] VS Code (version 1.43.0)
  [✓] Connected device (1 available)
  
  ! Doctor found issues in 2 categories.
  </code></pre>
  
  <p>Xcode logs</p>
  
  <pre><code>---- Firebase Dynamic Links diagnostic output start ----
  Firebase Dynamic Links framework version 4.0.7
  System information: OS iOS, OS version 13.3.1, model iPhone
  Current date 2020-03-10 12:46:34 +0000
  Device locale en-US (raw en_US), timezone America/Boise
      Specified custom URL scheme is com.pitch.links and Info.plist contains such scheme in CFBundleURLTypes key.
      AppID Prefix: XXXXXXXXXX, Team ID: XXXXXXXXXX, AppId Prefix equal to Team ID: YES
  performDiagnostic completed successfully! No errors found.
  ---- Firebase Dynamic Links diagnostic output end ----
  Runner[366:14705] 6.18.0 - [Firebase/Analytics][I-ACS800023] No pending snapshot to activate. SDK name: app_measurement
  Runner[366:14754] 6.18.0 - [Firebase/Analytics][I-ACS800003] Registered an SDK that has already registered. Default flags will be overwritten. SDK name: app_measurement
  Runner[366:14754] 6.18.0 - [Firebase/Analytics][I-ACS800023] No pending snapshot to activate. SDK name: app_measurement
  Runner[366:14712] Connection 3: received failure notification
  Runner[366:14712] Connection 3: failed to connect 12:8, reason -1
  Runner[366:14712] Connection 3: encountered error(12:8)
  Runner[366:14712] Task &lt;03A1535D-FD13-4872-B14B-6673E202F028&gt;.&lt;2&gt; HTTP load failed, 0/0 bytes (error code: -1003 [12:8])
  Runner[366:14712] Task &lt;03A1535D-FD13-4872-B14B-6673E202F028&gt;.&lt;2&gt; finished with error [-1003] Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified hostname could not be found." UserInfo={NSUnderlyingError=0x282e21b30 {Error Domain=kCFErrorDomainCFNetwork Code=-1003 "(null)" UserInfo={_kCFStreamErrorCodeKey=8, _kCFStreamErrorDomainKey=12}}, NSErrorFailingURLStringKey=https://firebasedynamiclinks-ipv6.googleapis.com/v1/installAttribution?key= AIzaxxxxxxx_xxxxxxxxxx_xxxxxxxxxxxxxxxx, NSErrorFailingURLKey=https://firebasedynamiclinks-ipv6.googleapis.com/v1/installAttribution?key= AIzaxxxxxxx_xxxxxxxxxx_xxxxxxxxxxxxxxxx, _kCFStreamErrorDomainKey=12, _kCFStreamErrorCodeKey=8, NSLocalizedDescription=A server with the specified hostname could not be found.}
  Runner[366:14505] [ProcessSuspension] 0x10e4e13b0 - ProcessAssertion::processAssertionWasInvalidated()
  Runner[366:14505] [ProcessSuspension] 0x10e4e1410 - ProcessAssertion::processAssertionWasInvalidated()
  Runner[366:14707] 6.18.0 - [Firebase/Analytics][I-ACS023012] Analytics collection enabled
  Runner[366:14707] 6.18.0 - [Firebase/Analytics][I-ACS023001] Deep Link does not contain valid required params. URL params: {
      dismiss = 1;
      "is_weak_match" = 1;
  }
  Runner[366:14505] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service
  Runner[366:14505] Could not signal service com.apple.WebKit.Networking: 113: Could not find specified service
  Runner[366:14505] Returning local object of class NSString
  Runner[366:14505] Can't end BackgroundTask: no background task exists with identifier 14 (0xe), or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug.
  Runner[366:15138] 6.18.0 - [Firebase/Analytics][I-ACS023000] Deep Link Web URL query is empty
  </code></pre>
  
  <p>apple-app-site-association</p>
  
  <pre><code>{"applinks":{"apps":[],"details":[{"appID":"XXXXXXXXXX.com.pitch.links","paths":["NOT /_/*","/*"]}]}}
  </code></pre>
  
  <p>applinks:pitchlink.page.link is listed as an Associated Domain
  and URL Type with Identifier of Bundle ID and URL Schemes com.pitch.links has been added to the Info.plist</p>
  
  <p>Flutter main.dart</p>
  
  <pre><code>import 'package:firebase_dynamic_links/firebase_dynamic_links.dart';
  import 'package:flutter/material.dart';
  
  void main() =&gt; runApp(MyApp());
  
  class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return MaterialApp(
        title: 'Dynamic Links',
        theme: ThemeData(
          primarySwatch: Colors.blue,
        ),
        home: MyHomePage(title: 'Dynamic Links'),
      );
    }
  }
  
  class MyHomePage extends StatefulWidget {
    MyHomePage({Key key, this.title}) : super(key: key);
    final String title;
    @override
    _MyHomePageState createState() =&gt; _MyHomePageState();
  }
  
  class _MyHomePageState extends State&lt;MyHomePage&gt; {
    Uri dynamicUrl;
  
    @override
    void initState() {
      super.initState();
      this.initDynamicLinks();
    }
  
    void initDynamicLinks() async {
      final DynamicLinkParameters parameters = DynamicLinkParameters(
        uriPrefix: 'https://pitchlink.page.link',
        link: Uri.parse('https://example.com/suffix?d=1'),
        iosParameters: IosParameters(
          bundleId: 'com.pitch.links',
          minimumVersion: '0.0.1',
        ),
      );
      FirebaseDynamicLinks.instance.onLink(
          onSuccess: (PendingDynamicLinkData dynamicLink) async {
        final Uri deepLink = dynamicLink?.link;
        print(deepLink.toString());
      }, onError: (OnLinkErrorException e) async {
        print('onLinkError');
        print(e.message);
      });
      ShortDynamicLink link = await parameters.buildShortLink();
      setState(() {
        dynamicUrl = link.shortUrl;
      });
    }
  
    @override
    Widget build(BuildContext context) {
      return Scaffold(
        appBar: AppBar(
          title: Text(widget.title),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: &lt;Widget&gt;[
              Text(
                'Dynamic Link:',
              ),
              dynamicUrl != null
                  ? SelectableText(
                      dynamicUrl.toString(),
                    )
                  : Container(),
            ],
          ),
        ),
      );
    }
  }
  </code></pre>
  
  <p>pubspec.yaml</p>
  
  <pre><code>name: pitch_links
  description: A new Flutter project.
  version: 0.0.0+1
  
  environment:
    sdk: "&gt;=2.1.0 &lt;3.0.0"
  
  dependencies:
    flutter:
      sdk: flutter
    firebase_dynamic_links: ^0.5.0+11
    firebase_analytics: ^5.0.11
    cupertino_icons: ^0.1.2
  
  dev_dependencies:
    flutter_test:
      sdk: flutter
  
  flutter:
    uses-material-design: true
  </code></pre>
  
  <p>pod install --clean-install --verbose</p>
  
  <pre><code>-&gt; Using Firebase (6.18.0)
  -&gt; Using FirebaseAnalytics (6.3.0)
  -&gt; Using FirebaseAnalyticsInterop (1.5.0)
  -&gt; Using FirebaseCore (6.6.3)
  -&gt; Using FirebaseCoreDiagnostics (1.2.1)
  -&gt; Using FirebaseCoreDiagnosticsInterop (1.2.0)
  -&gt; Using FirebaseDynamicLinks (4.0.7)
  -&gt; Using FirebaseInstallations (1.1.0)
  -&gt; Using Flutter (1.0.0)
  -&gt; Using GoogleAppMeasurement (6.3.0)
  -&gt; Using GoogleDataTransport (4.0.1)
  -&gt; Using GoogleDataTransportCCTSupport (1.4.1)
  -&gt; Using GoogleUtilities (6.5.1)
  -&gt; Using PromisesObjC (1.2.8)
  -&gt; Using firebase_analytics (0.0.1)
  -&gt; Using firebase_dynamic_links (0.1.0)
  -&gt; Using nanopb (0.3.9011)
  </code></pre>