Fix variables declarations

backgroundPage.js

-sites_url = "https://raw.githubusercontent.com/RSF-RWB/collateralfreedom/master/sites.json"
-sites = {}
-domain_regexp = /:\/\/(www\.)?([^\/]+)\//
+var sites_url = "https://raw.githubusercontent.com/RSF-RWB/collateralfreedom/master/sites.json"
+var sites = {}
+var domain_regexp = /:\/\/(www\.)?([^\/]+)\//
 
 // Retrieve the list of mirrors
 function getSitesAndMirrors() {
 			sites = sites.sites
 			if(url.match(domain_regexp)) {
 				// Skipping detection for about:* pages
-				domain = url.match(domain_regexp).slice(-1)[0]
+				let domain = url.match(domain_regexp).slice(-1)[0]
 				if(domain in sites) {
 					chrome.browserAction.setIcon({path: 'rsc/icon-red.png'})
 				}

index.js

 
 // Redirect to mirror url
 function takeMeTo(url) {
-	updateProperties = {
+	let updateProperties = {
 			url: "https://" + url
 	}
 	chrome.tabs.update(updateProperties=updateProperties)
 	// about it and the button to redirect to a random mirror (if there's more than
 	// one).
 	getCurrentTabUrl(function(url) {
-		chrome.storage.local.get("sites", function(sites){
-			sites = sites.sites
+		chrome.storage.local.get("sites", function(localSites){
+			sites = localSites.sites
 			// Grab the domain part of the URL
-			domain = url.match(/:\/\/(www\.)?([^\/]+)\//).slice(-1)[0]
+			let domain = url.match(/:\/\/(www\.)?([^\/]+)\//).slice(-1)[0]
+			console.log(domain);
+			console.log(sites);
 			if(domain in sites) {
-				proxies = sites[domain]
+				let proxies = sites[domain]
 				// Offer the user to redirect them to a mirror
 				$("#mirror").css("display", "block")
 				$("#nomirror").css("display", "none")