diff --git a/background.js b/background.js
index b457328..d8ec2b2 100644
--- a/background.js
+++ b/background.js
@@ -873,11 +873,11 @@ function canceled(account, id/* , tab */) {
 	console.log(account, id);
 	const upload = uploads.get(id);
 	if (upload) {
-		if (!upload.canceled) {
+		if (upload.canceled) {
+			notification("❌ Upload already canceled", `Error: Upload of the “${upload.file.name}” file was already canceled.`);
+		} else {
 			upload.canceled = true;
 			notification("ℹ️ Canceling upload", `Canceling upload of the “${upload.file.name}” file.`);
-		} else {
-			notification("❌ Upload already canceled", `Error: Upload of the “${upload.file.name}” file was already canceled.`);
 		}
 	} else {
 		notification("❌ Unable to find file", "Error: Unable to find file to cancel upload. It may have already been deleted.");
@@ -978,10 +978,9 @@ init();
 browser.runtime.onMessage.addListener(async (message, sender) => {
 	// console.log(message);
 	switch (message.type) {
-		case BACKGROUND: {
+		case BACKGROUND:
 			setSettings(message.optionValue);
 			break;
-		}
 		case VERIFY: {
 			const response = {
 				type: VERIFY,
diff --git a/common.js b/common.js
index 8974f5f..0c0e6b4 100644
--- a/common.js
+++ b/common.js
@@ -18,7 +18,7 @@ export const numberFormat = new Intl.NumberFormat();
  * @returns {string}
  */
 export function outputunit(number, scale) {
-	let str = "";
+	let str;
 
 	const scale_base = scale ? 1000 : 1024;
 
diff --git a/popup/popup.js b/popup/popup.js
index 97b1532..1aada86 100644
--- a/popup/popup.js
+++ b/popup/popup.js
@@ -153,7 +153,7 @@ document.getElementById("toggle").addEventListener("change", (event) => {
 	password.focus();
 });
 
-document.getElementById("generate").addEventListener("click", (event) => {
+document.getElementById("generate").addEventListener("click", (/* event */) => {
 	let apassword = "";
 	let atext = "";
 
@@ -199,7 +199,7 @@ document.getElementById("settings").addEventListener("click", (event) => {
 	});
 });
 
-addEventListener("beforeunload", (event) => {
+addEventListener("beforeunload", (/* event */) => {
 	if (!eventHasBeenSend) {
 		const response = {
 			type: POPUP,