Hi @LeonidS @PavelS

After clearing my browsing data (which I've always done), the subscription worked; that is, the pop-up window appeared asking if I wanted to subscribe to notifications. It's worth mentioning that I agreed to subscribe to notifications, then clicked "Allow" in the pop-up window. But the welcome notification never appears, even though I configured "Send welcome notification after subscribing" in OneSignal.

At this point, the only thing I had configured was the OneSignal App ID in Studio-Settings-Push.

However, the OneSignal dashboard showed that I had only subscribed via email.

So I added the OneSignalSDKWorker.js file to the root directory of my website, cleared my browsing data again, and went back to https://trabajoar.ar. This time, after agreeing to receive notifications, the OneSignal dashboard showed two subscriptions: one via email and one via push notifications. I don't know if there's a connection or if it was just a coincidence.

That's as far as I got. I tried sending a test push notification from OneSignal, and I sent it, but it's not arriving.

In Studio-Settings-Push, I didn't enter anything in "REST API Key" because I'm not sure how to get this information. I assume I need to add a key (screenshot attached), but it says there that it shouldn't be exposed, so I don't understand. When I add a key, a very long string is automatically generated. I'm not sure if that string is the REST API key or if I should use a different string called "key id".

Thank you very much.