Good article. Another VAPID key generator site is helpful, too bad it doesn't seem to work. And even when you have what seems like a valid key, browsers might give errors of the form "Invalid VAPID token" which are very frustrating... And sometimes only happen in Firefox vs Chrome. Would like to see anyone do a more thorough write-up of this part though:
> In order to send web push notifications from your backend application server, you have to construct, encode, and encrypt the messages properly.
Basically, that's the hardest part, if you don't have library support of someone having done it for you already.
Web Push is both simple in design and yet frustrating. I gained some sympathy for sites that have opted not to support it after trying to do it myself without a library on a test page. (I'd only do it for real if anyone besides myself would use it, and just use the library.)
> In order to send web push notifications from your backend application server, you have to construct, encode, and encrypt the messages properly.
Basically, that's the hardest part, if you don't have library support of someone having done it for you already.
Web Push is both simple in design and yet frustrating. I gained some sympathy for sites that have opted not to support it after trying to do it myself without a library on a test page. (I'd only do it for real if anyone besides myself would use it, and just use the library.)