poorejc commented on issue #50: URL: https://github.com/apache/incubator-flagon-useralejs/issues/50#issuecomment-801268658
Some forensics: sendOnClose was not functioning, at all. It appears there were two failures: 1. sendOnClose doesn't execute because it is conditional on !config.on which is equivalent to not-started (as in UserALE.js) is not started. This is short-hand for state == interactive (see ./src/main.js). I don't know why this doesn't work, but for page lifecycle events as fast as navigations, it could be that the function breaks as userale.js is infact unloaded and the config object doesn't exist anymore. 2. sendOnClose uses 2 methods to try to send logs: -- if (navigator.sendBeacon) { window.addEventListener('unload', function() { navigator.sendBeacon(config.url, JSON.stringify(logs)); }); } else { -- window.addEventListener('beforeunload', function() { if (logs.length > 0) { sendLogs(logs, config, 1); Neither of these appear working using the /example page: first the /example page doesn't init a navigator.sendbeacon on the page. second, 'beforeunload' is unreliable. Though I didn't run all permutations of removing notstarted logic and using each of these options indepenedently. I can't get it to work. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org