diff --git a/waifu-tips.js b/waifu-tips.js
index f5abfbf..dab9215 100755
--- a/waifu-tips.js
+++ b/waifu-tips.js
@@ -9,8 +9,12 @@ function loadWidget(config) {
 	if (typeof cdnPath === "string") {
 		useCDN = true;
 		if (!cdnPath.endsWith("/")) cdnPath += "/";
+	} else if (typeof apiPath === "string") {
+		if (!apiPath.endsWith("/")) apiPath += "/";
+	} else {
+		console.error("Invalid initWidget argument!");
+		return;
 	}
-	if (!apiPath.endsWith("/")) apiPath += "/";
 	localStorage.removeItem("waifu-display");
 	sessionStorage.removeItem("waifu-text");
 	document.body.insertAdjacentHTML("beforeend", `<div id="waifu">
@@ -252,7 +256,7 @@ function loadWidget(config) {
 	}
 }
 
-function initWidget(config, apiPath = "/") {
+function initWidget(config, apiPath) {
 	if (typeof config === "string") {
 		config = {
 			waifuPath: config,