Open iwindfree opened 1 year ago
Also note that:
The most important way to optimize for bfcache in all browsers is to never use the
unload
event. Ever![...]
Instead of using the
unload
event, use thepagehide
event. Thepagehide
event fires in all cases where theunload
event currently fires, and it also fires when a page is put in the bfcache.
@mems boomerang doesn't attach to the unload event except for really old browsers that don't have bfcache. The boomerang unload event is the browser's beforeunload or pagehide event.
Hi, thank's to boomerang script contributors. It's a great script..
I have a two question. one, Is there a way to disable page unload beacon?
two, for web vital score, Does cumulative shift layout (CLS) usually happen before page load event end?
Currently, in order to measure CLS, I set 'afteronload' option of continunity pluin to true and collect cls score from the page unload beacon. If CLS usually happen before page load event end, I will collect CLS from page load beacon not unload beacon.
thanks in advance.