sadams101 Posted February 9 Posted February 9 PageSpeed Insights is now making a big deal out of the use of UnloadHandler and "Registers an unload listener" in root_library.js. My scoring for Best Practices went from ~95 to ~78 overnight. Are you aware of this, and if so, what is the timeframe for updating this?
Jim M Posted February 9 Posted February 9 This may be a topic you will want to read. Short summary is that we're aware of it but as it is an engrained dependency, it isn't something we can rip out willy nilly 🙂 .
sadams101 Posted February 9 Author Posted February 9 Apparently it will not be supported by browsers for much longer, so you may want to put this on your front burner. Since it is showing up now in PageSpeed Insights with a much higher penalty than before, it has also become a bigger negative ranking factor.
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