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1. samtstern commented on Feb 10, 2021

   

   samtstern

   on Feb 10, 2021

   Contributor

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   @lisp719 can you explain a little more what you mean by "I can access the firestore emulator from the hosting emulator." ... is there a specific line of code that is not working for you? If so could you show the code and the logs?
2. samtstern

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   on Feb 10, 2021
3. lisp719 commented on Feb 10, 2021

   

   lisp719

   on Feb 10, 2021

   Last edited by samtstern

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   public/index.html

   This is mostly html created with firebase init hosting

   <!DOCTYPE html>
   <html>
     <head>
       <meta charset="utf-8" />
       <meta name="viewport" content="width=device-width, initial-scale=1" />
       <title>Welcome to Firebase Hosting</title>
   
       <!-- update the version number as needed -->
       <script defer src="/__/firebase/8.2.6/firebase-app.js"></script>
       <!-- include only the Firebase features as you need -->
       <script defer src="/__/firebase/8.2.6/firebase-firestore.js"></script>
   
       <script defer src="/__/firebase/init.js?useEmulator=true"></script>
     </head>
     <body>
       <script>
         document.addEventListener("DOMContentLoaded", function () {
           firebase
             .firestore()
             .doc("/foo/bar")
             .get()
             .then((doc) => {
               console.log(doc.exists);
             });
         });
       </script>
     </body>
   </html>

   # /__/firebase/init.js?useEmulator=true
   

   Probably init.js generated by hosting emulator

   if (typeof firebase === 'undefined') throw new Error('hosting/init-error: Firebase SDK not detected. You must include it before /__/firebase/init.js');
   var firebaseConfig = {
     "projectId": "tejun-6b17b",
     "storageBucket": "tejun-6b17b.appspot.com",
     "locationId": "us-central",
     "apiKey": "AIzaSyD5hr25OUI9m7xUUeSVSbZsld3D-R1n9B0",
     "authDomain": "tejun-6b17b.firebaseapp.com",
     "messagingSenderId": "498331656419"
   };
   if (firebaseConfig) {
     firebase.initializeApp(firebaseConfig);
   
     var firebaseEmulators = {
     "firestore": {
       "host": "0.0.0.0",
       "port": 8080
     }
   };
     if (firebaseEmulators) {
       console.log("Automatically connecting Firebase SDKs to running emulators:");
       Object.keys(firebaseEmulators).forEach(function(key) {
         console.log('\t' + key + ': http://' +  firebaseEmulators[key].host + ':' + firebaseEmulators[key].port );
       });
   
       if (firebaseEmulators.database && typeof firebase.database === 'function') {
         firebase.database().useEmulator(firebaseEmulators.database.host, firebaseEmulators.database.port);
       }
   
       if (firebaseEmulators.firestore && typeof firebase.firestore === 'function') {
         firebase.firestore().useEmulator(firebaseEmulators.firestore.host, firebaseEmulators.firestore.port);
       }
   
       if (firebaseEmulators.functions && typeof firebase.functions === 'function') {
         firebase.functions().useEmulator(firebaseEmulators.functions.host, firebaseEmulators.functions.port);
       }
   
       if (firebaseEmulators.auth && typeof firebase.auth === 'function') {
         firebase.auth().useEmulator('http://' + firebaseEmulators.auth.host + ':' + firebaseEmulators.auth.port);
       }
     } else {
       console.log("To automatically connect the Firebase SDKs to running emulators, replace '/__/firebase/init.js' with '/__/firebase/init.js?useEmulator=true' in your index.html");
     }
   }

   browser console error

   POST to http://0.0.0.0:8080 will be net :: ERR_ADDRESS_INVALID

   
4. google-oss-bot

   added

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   Needs: Author FeedbackIssues awaiting author feedbackIssues awaiting author feedback

   on Feb 10, 2021
5. yuchenshi

   self-assigned this

   on Feb 11, 2021
6. yuchenshi commented on Feb 11, 2021

   

   yuchenshi

   on Feb 11, 2021

   Member

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   As you've observed, we need a fix similar to firebase/firebase-tools-ui#312. You're welcome to open a PR to port that change to init.js in hosting emulator, or you can remove ?useEmulator=true and initialize the SDKs yourself as a local workaround.
7. yuchenshi

   added

   emulator-suite

   emulators: hosting

   help-wanted

   type: bug

   and removed

   Needs: Attention

   on Feb 11, 2021
8. rcopstein commented on Feb 16, 2021

   

   rcopstein

   on Feb 16, 2021

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   I've had a similar issue using Docker on macOS Big Sur. It's was interesting to see that hosting using firebase serve worked as expected. That didn't meet my requirements because I also wanted the Firestore emulator to be running with it. My workaround was to setup NGINX on my container to proxy requests to localhost:5000 (which is where hosting was being exposed when launched with firebase emulators:start).

   From what I could see my requests were being dropped by the hosting emulator because they were made from an external IP address. It looks like we are missing an option for "host": "0.0.0.0" on the firebase.json file.
9. yuchenshi

   added a commit that references this issue on Feb 16, 2021

   fix(emulator): Hosting emulator should not connect to 0.0.0.0 for emu…

   ...

   ea06936
10. yuchenshi commented on Feb 16, 2021

    

    yuchenshi

    on Feb 16, 2021

    Member

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    This is now fixed by #3141 (thank you!) and will be included in the next release.
11. yuchenshi

    closed this as completedon Feb 16, 2021
12. devpeerapong

    added a commit that references this issue on Dec 14, 2021

    fix(emulator): Hosting emulator should not connect to 0.0.0.0 for emu…

    ...

    47c78b7