Widget doesn't work: keeps reloading

[sprinterwind]

I also tried to run it with

plasmawindowed org.kde.plasma.bitcoinprice

command and got

file:///home/user/.local/share/plasma/plasmoids/org.kde.plasma.bitcoinprice/contents/code/bitcoin.js:71: SyntaxError: JSON.parse: Parse error

error.

I also tried to run the

console.log("hello world!");
let rate = getRate("Blockchain.info", "$",
	 function(rate) {
		if(!plasmoid.configuration.showDecimals) rate = Math.floor(rate);

		var rateText = Number(rate).toLocaleCurrencyString(Qt.locale(), Bitcoin.currencySymbols[plasmoid.configuration.currency]);

		if(!plasmoid.configuration.showDecimals) rateText = rateText.replace(Qt.locale().decimalPoint + '00', '');

		root.bitcoinRate = rateText;

		var toolTipSubText = '<b>' + root.bitcoinRate + '</b>';
		toolTipSubText += '<br />';
		toolTipSubText += i18n('Market:') + ' ' + plasmoid.configuration.source;

		plasmoid.toolTipSubText = toolTipSubText;

		root.updatingRate = false;
	});
console.log(rate);

inside Webstorm (pasted at the end of the bitcoin.js file), but having issues with line 147:

 var xhr =  new XMLHttpRequest();
                   ^

ReferenceError: XMLHttpRequest is not defined