WebPush with Firebase (FCM) push delay

Hi, a weird thing is happening to me with FCM - Firebase Messaging Cloud. In android I have no problem with notifications, they arrive immediately or in 1 or 2 seconds, but in web with javascript, sometimes the payload (data) or notifications do not arrive ... but at first it works, I emit data from my server in Node and they arrive immediately, I keep doing it every minute and in the foreground and I keep receiving the payloads, but if I stop sending notifications in more than 3 minutes and send, they arrive with an indefinite delay, sometimes half an hour ... Very rare, when I send notifications in a row (1 minute approx) there is no problem, but if I do it every 5 minutes or more they come with a delay ...

In my server:

const message = {

data: {

title: "Some title...",

body: "Some content...",

info: "some data...",


webpush: {

headers: {

Urgency: "high",

TTL: "4500"



tokens: tokens,


[login to view URL]


.then((response) => {

[login to view URL]("Sent...", response);


.catch((error) => {

[login to view URL](error);


In my javascript client:

async created() {

[login to view URL]({

vapidKey: 'BMvK2Y2H_........'

}).then((currentToken) => {

if (currentToken) {

[login to view URL](currentToken)

this.$[login to view URL]("[login to view URL]", {

token: currentToken


.then(response => {

[login to view URL](response)

}).catch((error) => {

[login to view URL](error)


} else {

// Show permission request UI

[login to view URL]('No registration token available. Request permission to generate one.');

// ...


}).catch((err) => {

[login to view URL]('An error occurred while retrieving token. ', err);

// ...



mounted() {

[login to view URL]((payload) => {

[login to view URL]('Message received. ', payload);



Beceriler: Google Firebase, Push Notification, Mobile App Development

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İşveren Hakkında:
( 0 değerlendirme ) Breña, Lima, Peru

Proje NO: #29373737

Bu iş için 2 freelancer ortalamada $28 teklif veriyor


Hello, Hope this message finds you well, I checked your details and I believe that my experience is what you are looking 4. I have been working on similar projects for the past eight years, and I have the essential sk Daha Fazla

$20 USD in 4 gün içinde
(2 Değerlendirme)

Hi I have worked with several FCM issues in past and have successfully debugged. I can take a look at the current server settings and see if it can be fixed easily. Other as per your description it seems to be a proble Daha Fazla

$35 USD in 3 gün içinde
(0 Değerlendirme)