When people talk about βcross-browser issues,β they almost always mean βIE issues.β Modern browsers, that is, nothing but IE, pretty much work well with modern standards and practice, and go out over the network only for IE, it's just sad.
There are several ways to bypass JavaScript so that older, non-standard browsers such as IE work with HTML5, although I donβt remember them from the head, but some parts of HTML5 can easily work in IE; such as new items aside, section, etc.
In my situation, we simply completed the ecommerce solution using HTML5 elements without any problems, but had to include workarounds and hacks for IE.
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