This specification defines an interoperable means for site developers to asynchronously transfer small HTTP data from the User Agent to a web server.
Latest draft @ https://w3c.github.io/beacon/
See also Web performance README
Beacon
This specification defines an interoperable means for site developers to asynchronously transfer small HTTP data from the User Agent to a web server.
Latest draft @ https://w3c.github.io/beacon/
See also Web performance README