<script src="lib/Proxy.js">
<script>
var proxy = new Proxy();

proxy.get("./index.html", function(error, responseText, xhr) {
    console.log(responseText);
});

</script>

importScripts("lib/Proxy.js");

var proxy = new Proxy();

proxy.get("./index.html", function(error, responseText, xhr) {
    console.log(responseText);
});