function copyToClipboard(text) {
	const input = document.createElement('input');
	input.style.position = 'fixed';
	input.style.opacity = 0;
	input.value = text;
	document.body.appendChild(input);
	input.select();
	document.execCommand('Copy');
	document.body.removeChild(input);
};

chrome.browserAction.onClicked.addListener(function() {
	var toClipboard = ""
	var separator = "";
	chrome.tabs.query({}, function(tabs) {
		$.each(tabs, function() {
			var url = new URL(this.url);
			var domain = url.hostname;
			if ((domain == "geocaching.com" || domain == "www.geocaching.com") && url.pathname.startsWith("/geocache")) {
				toClipboard += separator + this.title.split(" ")[0];
				separator = ",";
			}
		});
		copyToClipboard(toClipboard);
	});
});