A placeholder polyfill that fills in placeholder values for input types on Internet Explorer version 8 and 9. Just include the placeholder.js file script in your build somehow and call placeholderPolyfill() when the window has loaded.
Example:
<!DOCTYPE html>
<html>
<head>
<title>placeholder-polyfill</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style>
.placeholder {
color: red;
}
.my-custom-placeholder {
color: green;
}
</style>
</head>
<body>
<input type="text" placeholder="placeholder text"><br>
<input type="text" placeholder="my custom placeholder text" placeholderclassname="my-custom-placeholder">
<script src="placeholder.js"></script>
<script>
window.onload = function() {
placeholderPolyfill();
}
</script>
</body>
</html>