Unable to get Instance ID token about quickstart-js

[gauntface]

The 'firebase-messaging-sw.js' file needs to be at the root of your project.

If you can't do that you can use the useServiceWorker(registration) method which would look something like this:

navigator.serviceworker.register('/app/path/example/sw.js')
.then((registration) => {
    const messaging = firebase.messaging();
    messaging.useServiceWorker(registration);
    return messaging.getToken();
})
.then((token) => {
    ....
});

[saiprasad08dhumal]

I prefer to use useServiceWorker using the following syntax
firebase.messaging().useServiceWorker(registration)
what should be the value of registration object that we pass in here?
It should point to my firebase_ServiceWorker.js file in same directory. which contains:
//start of firebase_ServiceWorker
firebase.initializeApp({
'messagingSenderId': '103953800507'
});
const messaging = firebase.messaging();
//END of firebase_ServiceWorker
After this is done, I expect to get FCM token on web.

[riddbengkok]

yess i got it , the problem is , script read server worker in http://localhost/firebase-messaging-sw.js , not in my app folder http://localhost/firebase/quickstart/messaging , so i must add file firebase-messaging-sw.js in root of folder localhost (/var/ww/html) , i dont know but its work

thank for answer mr @gauntface

but how to fx this ,to read firrebase-messaging-sw.js in my app directory?

[kroikie]

If the IID token generation fails, it should be logged in the console, are you seeing any error message there?

I have tried on windows Chrome and it is giving error:
browserErrorMessage
:
"Failed to register a ServiceWorker: ServiceWorker script evaluation failed"
code
:
"messaging/failed-serviceworker-registration"
message
:
"Messaging: We are unable to register the default service worker. Failed to register a ServiceWorker: ServiceWorker script evaluation failed (messaging/failed-serviceworker-registration)."
stack
:
(...)
get stack
:


but on MAC OS Chrome , it was just saying "loading..." No error was available in the console. The test has been done Over https connections. Firefox is working on both Windows and MacOS platform. Only I am getting the problem with Chrome.

[BibleFarm]

I think I'm missing something...
http://www.solidarityfarm.tk/quickstart-js-master/messaging/index.html

This below is the only error I'm getting with Firefox 49.0.2 :
An error occurred while retrieving token. Object { code: "messaging/unsupported-browser", message: "Messaging: This browser doesn't sup…", name: "FirebaseError", stack: "", 1 more

With above URL http://www.solidarityfarm.tk/quickstart-js-master/messaging/index.html I am getting "Only secure origins are allowed (see: https://goo.gl/Y0ZkNV)." error in console.

[BibleFarm]

Thank you for trying it inautus :) I appreciate that.
Should I ask my hosting service to put my URL in an https:// in order for this messaging to work? Or is there another way to make it work?

[riddbengkok]

i have eror too , like @inautus error:
browserErrorMessage
:
"Failed to register a ServiceWorker: ServiceWorker script evaluation failed"
code
:
"messaging/failed-serviceworker-registration"
message
:
"Messaging: We are unable to register the default service worker. Failed to register a ServiceWorker: ServiceWorker script evaluation failed (messaging/failed-serviceworker-registration)

runing in localhost/firebase/quickstart/messaging
anyone can hlep ?

[gauntface]

The "script evaluation failed" normally means there was a problem with the
javascript in the service worker file.

Does it link to a line number? Also are you starting the server in the
messaging folder?

Matt

On Mon, 31 Oct 2016, 23:53 alfat osk, [email protected] wrote:

i have eror too , like @inautus https://github.com/inautus error:
browserErrorMessage : "Failed to register a ServiceWorker: ServiceWorker
script evaluation failed" code :
"messaging/failed-serviceworker-registration" message : "Messaging: We are
unable to register the default service worker. Failed to register a
ServiceWorker: ServiceWorker script evaluation failed
(messaging/failed-serviceworker-registration)

runing in localhost/firebase/quickstart/messaging
anyone can hlep ?

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[19anandp94]

I am getting the similar error as following:

An error occurred while retrieving token. V {code: "messaging/failed-serviceworker-registration", message: "Messaging: We are unable to register the default s…t. (messaging/failed-serviceworker-registration).", browserErrorMessage: "Failed to register a ServiceWorker: A bad HTTP res…code (404) was received when fetching the script.", stack: "FirebaseError: Messaging: We are unable to registe….gstatic.com/firebasejs/3.5.1/firebase.js:537:225"}

[19anandp94]

And It is working fine and generating token on the chrome's localhost server but not working on my hosting server.
Please Help! on issue.

[sachinsolanki]

I got same problem with all browser, When I am trying with my hosting server.

[northoutIshan]

+1

[steros76]

I have the same problem. Analysing the code I saw the worker is registered as '/firebase-messaging-sw.js', so, putting 'firebase-messaging-sw.js' on website root, it works correctly.
It seems to me it's a bug.

[GabrielRivera21]

Yeah, it seems that you need to set up an SSL certificate in your domain. In localhost it will run fine, but, in order for a service worker to start, it must come from a secure origin meaning it has to come through the "https" protocol

[karsa87]

solved this problem by changing the file firebase.js
on line :
return navigator.serviceWorker.register("/firebase-messaging-sw.js",{scope:"/firebase-cloud-messaging-push-scope"})

change :
return navigator.serviceWorker.register("firebase-messaging-sw.js",{scope:"firebase-cloud-messaging-push-scope"})

and I made a folder firebase-cloud-messaging-push-scope with firebase.js files in it

[gauntface]

@karsa87 The better solution is to do as you are and call useServiceWorker() to use a service worker if the location of the service worker file is a problem: https://firebase.google.com/docs/reference/js/firebase.messaging.Messaging#useServiceWorker

[karsa87]

@gauntface thank you, for your suggestion. it worked well.

[MiloslavKrejza]

Hello i'm having the same issue
FirebaseError: Messaging: We are unable to register the default service worker. Failed to register a ServiceWorker: A bad HTTP response code (404) was received when fetching the script. (messaging/failed-serviceworker-registration).
at http://localhost:5000/__/firebase/3.8.0/firebase.js:544:225

I have my firebase-messaging-sw.js file in a root directory and it still giving me a error, what is the problem?
Please help

[gauntface]

@MiloslavKrejza Please continue discussing this on the other issue on this repo that you've commented on.

[akash710]

i am unable to generate the token in http localhost, what could be the reason? I don't see any error in console