Can’t display welcome push

My blog, when I press the subscription, I can’t display welcome push, and I can write welcome push by writing js myself. I don’t know if this is related to the firewall of China, but it’s only recently that I can’t use it. I used hexo- web-push-notification plugin
I may temporarily switch to workbox+snackbar to implement article update push

Hi there! All systems are fully functional. It could be a firewall issue. Are you able to receive push notifications on our web push demo page?

Maybe it has something to do with the Great Firewall in China. I have to use VPN or other proxy to get notifications, but I could get notifications a long time ago. In addition, for this reason, if you use the mainland China network, you can’t cancel the subscription naturally, and you will be prompted with errors.

OK, it worked!