Many bug fixes

contentScript.js

 	var shouldKillSticky = false;
 	let matchingPatterns = result.mode == "whitelist" ?
 						   [ ".*" ] :
-						   result.matchingPatterns.split("\n");
+						   (typeof result.matchingPatterns != "undefined" ?
+							result.matchingPatterns.split("\n") :
+							[ ]);
 	for (let pattern of matchingPatterns) {
-		if (location.href.match(new RegExp(pattern))) {
+		if (pattern && location.href.match(new RegExp(pattern))) {
 			shouldKillSticky = true;
 			break;
 		}
 	}
-	let exclusionPatterns = (typeof result.exclusionPatterns != "undefined" &&
-							 result.exclusionPatterns != "") ?
+	let exclusionPatterns = typeof result.exclusionPatterns != "undefined" ?
 							result.exclusionPatterns.split("\n") :
 							[ ];
 	for (let pattern of exclusionPatterns) {
-		if (location.href.match(new RegExp(pattern))) {
+		if (pattern && location.href.match(new RegExp(pattern))) {
 			shouldKillSticky = false;
 			break;
 		}

popup.js

-/*******************/
-/* EVENT LISTENERS */
-/*******************/
-
-
 /***********/
 /* HELPERS */
 /***********/
 	ASK.pageMatched = false;
 	ASK.pageExcluded = false;
 	for (let pattern of ASK.matchingPatterns) {
-		if (ASK.activeTabLocation.match(new RegExp(pattern))) {
+		if (pattern && ASK.activeTabLocation.match(new RegExp(pattern))) {
 			ASK.pageMatched = true;
 			break;
 		}
 	}
 	for (let pattern of ASK.exclusionPatterns) {
-		if (ASK.activeTabLocation.match(new RegExp(pattern))) {
+		if (pattern && ASK.activeTabLocation.match(new RegExp(pattern))) {
 			ASK.pageExcluded = true;
 			break;
 		}
 	ASK.mode = result.mode || "blacklist";
 	ASK.matchingPatterns = (ASK.mode == "whitelist") ?
 						   [ ".*" ] :
-						   result.matchingPatterns.split("\n");
-	ASK.exclusionPatterns = (typeof result.exclusionPatterns != "undefined" &&
-							 result.exclusionPatterns != "") ?
+						   (typeof result.matchingPatterns != "undefined" ?
+							result.matchingPatterns.split("\n") :
+							[ ]);
+	ASK.exclusionPatterns = typeof result.exclusionPatterns != "undefined" ?
 							result.exclusionPatterns.split("\n") :
 							[ ];
 	recalculatePatternEffects();
 function initialize() {
 	window.ASK = { };
 
+	// Retrieve saved settings.
 	chrome.tabs.query({currentWindow: true, active: true}, (tabs) => {
 		ASK.activeTabLocation = tabs[0].url;
 		chrome.storage.sync.get([ "matchingPatterns", "exclusionPatterns", "mode" ], (result) => {
 		});
 	});
 
+	// Listener for main button.
 	document.querySelector("button.main-button").addActivateEvent((event) => {
 		toggleState();
 
-		let matchingPatterns = ASK.matchingPatterns.join("\n");
-		let exclusionPatterns = ASK.exclusionPatterns.join("\n");
-		let mode = ASK.mode;
-		chrome.storage.sync.set({
-			"matchingPatterns": matchingPatterns,
-			"exclusionPatterns": exclusionPatterns,
-			"mode": mode
-		}, () => {
+		var changes = {
+			"exclusionPatterns": ASK.exclusionPatterns.join("\n"),
+			"mode": ASK.mode
+		};
+		if (ASK.mode == "blacklist")
+			changes.matchingPatterns = ASK.matchingPatterns.join("\n");
+		chrome.storage.sync.set(changes, () => {
 			updateUIState();
 			let reloadButton = document.querySelector("button.reload-button");
 			if (ASK.pageMatched && !ASK.pageExcluded) {
 		});
 	});
 
-
+	// Listener for Options button.
 	document.querySelector("button.options-button").addActivateEvent(() => {
 		chrome.runtime.openOptionsPage(null);
 	});
-	
+
+	// Listener for reload button (appears when sticky-killing is toggled OFF).
 	document.querySelector("button.reload-button").addActivateEvent(() => {
 		chrome.tabs.update(null, { url: ASK.activeTabLocation });
 		window.close();