Avoid serving legacy Javascript to modern browsers #120
Description
Describe the bug
My GTMetrix performance report is reporting "Avoid serving legacy Javascript to modern browsers" for /dist/js/frontend.js, specifically for Array.prototype.includes (although this might be incorrectly reported).
Would it be possible to investigate?
Steps to Reproduce
More info here: https://gtmetrix.com/avoid-serving-legacy-javascript-to-modern-browsers.html
Screenshots, screen recording, code snippet
Environment information
No response
WordPress information
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Code of Conduct
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