JSFiddle - React, Tailwind, and code Playground
by mblase75
HTML
<div id="source">
<div sizset="37" sizcache09734513102453994="3" sizcache07081295255533577="350" sizcache0714455993494169="6324">asdfasdf</div>
... more html going on
</div>
JavaScript
var source = $('#source').html();
var re = /\s*(sizset|sizcache)\d*="[^"]*"/gi;
source = source.replace(re,'');
console.log(source);