I've just tested Blazor example Blazing Pizza that uses push notifications as a PWA feature on Blazor. I changed public/private keys with my own generated ones and ran the project with MS Edge browser and push notifications worked as desired. But when I open it with Google Chrome, it doesn't shows any notification! (I allowed to show notifications).
I traced service-worker.js and found that notification hits the breakpoint, it means notification receives by browser but not showing:
I checked my Chrome's settings but not found anything to change.
I've found my mistake: I had blocked Google Chrome notifications in my Windows 10 notification settings!
Related
Would appreciated help on a gap in comprehension. Sending push notifications to Chrome running on a Windows 10 machine (tried on older Windows also) results in the notifications popping up only when the Chrome browser is open (similarly for installing the page as a PWA). On numerous sites and posts it says that Chrome can run a background process even when the browser is closed and still receive notifications that will kick off the browser or the PWA.
Have reviewed a number of posts from back in 2015/2016 which don't appear relevant based on current state of service workers, PWAs. Have also looked at the W3C spec and Chromium post on design and architecture which don't really seem to cover how the host OS (e.g., Windows) invokes the browser.
The Chrome browser is set to run in the background (setting->advanced->Continue running background apps when Google Chrome is closed) but on closing Chrome and looking at the running processes on the system, there does not seem to a Chrome background thread running (i.e., it does not seem that Chrome inherently runs some background process). Push notifications (e.g., sent via OneSignal) which result in the appropriate page being opened when Chrome is already open or the PWA receiving the notification (we are currently using GCM not FCM if that makes a difference) if it is open, do not seem to kick off the chrome browser if it is not already running. Otherwise the notifications are processed correctly.
From the google developer site and OneSignal documentation, etc, I had somewhat assumed (apparently incorrectly) that having a service worker for push notification would somehow create a background process environment.
So, the question is, what is required to keep Chrome running in the background to be able to receive the push notifications? Can it be done with a service worker? If the code is in a PWA is that different? Is a Chrome extension required? though having to create an extension would seem contrary to the point of creating the service workers and making the app a PWA.
I note also that it posts indicate that with Firefox this is not possible as Firefox completely exits on close with no background processes.
Any thoughts would be appreciated.
I am facing a Chrome popup while trying to run Robot Frame work script:
Microsoft Security Essentials wants to restore your Chrome settings to their
original defaults.
This will reset your homepage, new tab page and
search engine, disable your extensions, and unpin all tabs. It will
also clear other temporary and cached data, such as cookies, content
and site data.
In chrome extension, my developer mode is unchecked, whereas it should be checked.
The Robot Framework automation script is just to open the google Chrome browser and load google search page.
I am using Win 7 Home Basic OS.
I have attached screenshots.
It appears that most Chrome support specialists will ask you to run an anti-malware tool to verify that your system is running normally. These can be found by searching on the popup message.
One Reddit user commented that in his case the problem was resolved by altering the Windows registry:
I finally found a fix for this. There is a setting in the registry
that's causing it.
In the registry it's under
HKEY_CKU\CURRENT_USER\Software\Google\Chrome\TriggeredReset
Delete the TriggeredReset key and then close regedit. Fixed.
This is an API for 3rd party programmers who want to create cleaning
tools. But if the tool isn't written properly, the triggered reset
never gets deleted and we have it always asking.
I am currently working on a video web application. We rely on notification to notify provider there is call in.
Firebase works well even when I close the tab. I found that if there is any chrome's thread running in background, I will get notification.
Is there any way that I can make a background thread active even the user click close button on chrome? how about chrome extension? does it approach the goal?
Firebase Cloud Messaging for web relies on a service worker to receive messages when the web app is not active/visible. This requires that Chrome is active.
If the user completely quits Chrome, all tabs, service workers and extensions are stopped. There is no way to still receive web push notifications in that case.
We're developing a website which sends push notifications to end users using GCM. We've gone through Service Worker and all. We have developed a prototype using this codelab tutorial. It is working so far, but the only issue is the notifications are displayed only when Chrome is opened. When Chrome is closed, the notifications don't reach the users.
I want to know is there any way we can overcome this and display the notifications even when the browser is closed, similar to Safari Push Notification. Thanks in advance!
If you have a "background" permission in manifest.json, your background page will be able to show notifications even when Chrome window is closed.
"permissions": [
"background"
],
As stated in the documentation:
When any installed hosted app, packaged app, or extension has "background" permission, Chrome runs (invisibly) as soon as the user logs into their computer—before the user launches Chrome. The "background" permission also makes Chrome continue running (even after its last window is closed) until the user explicitly quits Chrome.
You need to use the "background" permission with a background page, event page or a background window for hosted apps.
For web, use Push API for Chrome and other browsers. The advantage of using push messages is that even if your page is closed, your service worker will be woken up and be able to show a notification. Web Sockets and EventSource have their connection closed when the page or browser is closed so it's not recommended. Here is the documentation and example.
In Chrome. Only those users that happen to have an extension installed that requires background mode, like hangouts, will be able to receive push notifications when chrome is not "running". It does not seem like a good idea to rely on it.
The chrome team seems to be considering it for web push too but so far there is no ETA.
https://code.google.com/p/chromium/issues/detail?id=402456
Showing notification when the browser or tab is closed requires the service worker and a third party service (like google firebase)to trigger the service worker.
https://github.com/web-push-libs/ - Check these list of libraries to implement this in different platforms.
https://github.com/rijoshrc/php-service-worker-push-notification - Clone this git repository to see the simple implementation in PHP.
I'm looking at the offscreen-tabs experimental API here.
Then I tried to enable this but I don't see it in the chrome://flags/ part of the browser. Has it been removed from the browser as an experimental API or has it become a real API?
Yes Chrome OffScreen Tabs API was deleted from chrome extensions code base on 13 Dec 2012 as shown in this Patch / Changelist. This Chrome Issue asked to delete the specific API.
Chrome Extension Dev Page for Offline Tabs API also gives 404 that means corresponding document was also removed.
try this ref: https://support.google.com/chrome/answer/2765944#browsersettings
On your Windows computer, visit the Chrome Cleanup Tool website.
Click Download now.
Read the terms of service, and click Accept and Download.
When the file is downloaded, you'll see it at the bottom. Click the filename (chrome_cleanup_tool.exe).
Windows will ask if you want to run the file. Click Run.
The Chrome Cleanup Tool will scan your computer. You'll see a list of any malicious software found.
Click Remove suspicious programs.
Chrome will open a new tab, and ask you to reset your settings. Click Reset.