Should be relatively easy to implement, will need to use tags in order for a new notification not to be displayed on every page for the same message (maybe with a message hash or something as the tag): https://developer.mozilla.org/en-US/docs/Web/API/Notification/tag
Should be relatively easy to implement, will need to use tags in order for a new notification not to be displayed on every page for the same message (maybe with a message hash or something as the tag): https://developer.mozilla.org/en-US/docs/Web/API/Notification/tag