diff --git a/src/lib/js/index.ts b/src/lib/js/index.ts
index 52b7ce1..5612a53 100644
--- a/src/lib/js/index.ts
+++ b/src/lib/js/index.ts
@@ -1,22 +1,16 @@
 function registerFlashCloseButtons() {
     const flashButtons = document.querySelectorAll(".notification .delete");
 
-    flashButtons.forEach((button) => {
-        const flash = button.parentNode;
-
-        if (flash === null) {
-            console.error(
-                "Unreachable because our `querySelector` includes a parent; something went very wrong"
-            );
-            return;
+    for (const flashButton of flashButtons) {
+        if (flashButton.parentNode === null) {
+            throw new Error("invalid flash button");
         }
 
+        const flash = flashButton.parentNode;
+
         flash.addEventListener("click", () => {
             if (flash.parentNode === null) {
-                console.error(
-                    "Notification not placed in DOM; something went very wrong"
-                );
-                return;
+                throw new Error("invalid flash message");
             }
 
             flash.parentNode.removeChild(flash);
@@ -38,7 +32,7 @@ function registerFlashCloseButtons() {
             const block = flash.parentNode;
             flash.parentNode.parentNode.removeChild(block);
         }
-    });
+    }
 }
 
 function registerNavCollapseButtons() {