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26 lines (23 loc) · 952 Bytes
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loader.js
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26 lines (23 loc) · 952 Bytes
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// Setup body and script objects
let body = document.getElementsByTagName('BODY')[0];
let script = document.createElement('script');
script.type = 'text/javascript';
// Push loading spinner to screen
const entryDiv = document.currentScript.getAttribute('entry');
body.innerHTML +=
'<div style="position:absolute; z-index:100; top:50%; left: 50%; transform: translate(-50%, -50%);">' +
'<img src="' + document.currentScript.getAttribute('spinner') + '" alt="Loading">' +
'</div>';
// Create new script request
let xhr = new XMLHttpRequest(), method = "GET", url = document.currentScript.getAttribute('bundle');
xhr.responseType = 'blob';
// Load the script
xhr.open(method, url, true);
xhr.onload = function () {
if(xhr.readyState === XMLHttpRequest.DONE && xhr.status === 200) {
script.src = URL.createObjectURL(xhr.response);
body.innerHTML = (entryDiv ? `<div id="${entryDiv}"></div>` : "");
body.appendChild(script);
}
};
xhr.send();