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omnikron/defer-test.html

Created July 31, 2019 08:13
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dynamic defer
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defer-test.html
<html>
<head>
<script>
//var sdkURL = "blah";
//if (window.location.href.indexOf("testUI=enabled") >= 0) {
// sdkURL += "&loadTesting";
//}
var scriptTag = document.createElement('script');
scriptTag.type = 'text/javascript'
var code = "window.alert('initial dynamic')"
scriptTag.appendChild(document.createTextNode(code));
scriptTag.setAttribute('defer', 'true');
scriptTag.defer;
document.head.appendChild(scriptTag);
</script>
<script>
setTimeout(() => {
var scriptTag = document.createElement('script');
scriptTag.type = 'text/javascript'
var code = "window.alert('timeout dynamic')"
scriptTag.appendChild(document.createTextNode(code));
scriptTag.setAttribute('defer', 'true');
document.head.appendChild(scriptTag);
}, 100);
</script>
<script defer="true">
window.alert('defer=true');
</script>
<script defer="defer">
window.alert('defer=defer');
</script>
<script defer>
window.alert('defer');
</script>
<script>
window.alert('no defer');
</script>
</head>
<body>
<p>Something</p>
</body>
</html>
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