Table of Contents Introduction Pending Beacon API Why Pending Beacons? Pending Beacon Experiments Methodology Reliability of XMLHttpRequest vs. sendBeacon() vs. Pending Beacon in Event Handlers onload pagehide or visibilitychange onload or pagehide or visibilitychange Conclusion Reliability of Pending Beacon "now" vs "backgroundTimeout" Reliability of Pending Beacon "backgroundTimeout" once vs. sendBeacon() in Event Handlers Misc Findings […] The post Beaconing in Practice: An Update on Rel...
