if you want to open an old website in a newer browser, the main reason why you can"t open it is that there is such a code
.document.createElement("<div class="class"></div>");what"s more, there is such a
.document.createElement("<div class="class"><div><div></div></div></div>");to achieve compatibility, you can also replace document.createElement ()
.how can I make sure this replacement works?
rewrite document.createElement and then parse it yourself, which is not recommended.
var original_fn = document.createElement
document.createElement = function(name) {
if (/^\w+$/.test(name)) {
return original_fn.call(document, name)
}
//
var div = original_fn.call(document, 'div')
div.innerHTML = name
return div.firstChild
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