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[Q & A] Registers an unload listener
See original GitHub issueDescription
Hi everyone, I used https://pagespeed.web.dev to check speed my website. I have one problem for js, specifically it is with jquery.
It’s Registers an unload listener
Note: The most important way to optimize for bfcache in all browsers is to never use the unload event. Ever!
I see with jquery is still using unload, Do you have any idea ?
Thank you
Issue Analytics
- State:
- Created a year ago
- Comments:5 (3 by maintainers)
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FWIW, jQuery 4+ will have this code scoped to IE only. We can’t do the same for jQuery 3.x as we can’t detect Edge Legacy that easily without using userAgent which we avoid. jQuery 4+ won’t support Edge Legacy.
ok Thank you