Minh Quy MQuy

Recently, when we check javascript error logs in our system, we notice that there are several issues which are related to the "old browser" like

Uncaught ReferenceError: Promise is not defined
Uncaught ReferenceError: fetch is not defined

	<html lang="en">
	<head>
	<link rel="preload" href="./vendor.js" as="script">
	<link rel="preload" href="./app.js" as="script">
	<body>
	<main id="root" style="height: 100%"></main>
	<script type="text/javascript">
	scripts = ['./vendor.js','./app.js'];

	if (!("fetch" in window && "Promise")) {

	compilation.plugin('html-webpack-plugin-alter-asset-tags', (htmlPluginData, cb) => {
	...
	htmlPluginData.body = inlineTags.concat([{
	tagName: 'script',
	closeTag: true,
	attributes: {
	type: 'text/javascript'
	},
	innerHTML: template
	}]);

	defmodule App do
	def split_case(str), do: split_case(str, [[], []])

	def split_case(<<char, remain :: binary>>, [upper, lower]) when char < 97 do
	split_case(remain, [[upper, char], lower])
	end
	def split_case(<<char, remain :: binary>>, [upper, lower]) do
	split_case(remain, [upper, [lower, char]])
	end
	def split_case("", [upper, lower]) do