frontend/src/components/viewer/EmbedPdfViewer.tsx

@@ -62,26 +62,20 @@ const EmbedPdfViewerContent = ({
 
   // Handle scroll wheel zoom
   React.useEffect(() => {
-    let accumulator = 0;
-
     const handleWheel = (event: WheelEvent) => {
       // Check if Ctrl (Windows/Linux) or Cmd (Mac) is pressed
       if (event.ctrlKey || event.metaKey) {
         event.preventDefault();
         event.stopPropagation();
 
-        // Convert smooth scrolling gestures into discrete notches
-        accumulator += event.deltaY;
-        const threshold = 10;
-
         const zoomAPI = window.embedPdfZoom;
         if (zoomAPI) {
-          if (accumulator <= -threshold) {
+          if (event.deltaY < 0) {
+            // Scroll up - zoom in
             zoomAPI.zoomIn();
-            accumulator = 0;
+          } else {
-          } else if (accumulator >= threshold) {
+            // Scroll down - zoom out
             zoomAPI.zoomOut();
-            accumulator = 0;
           }
         }
       }

frontend/vite.config.ts

@@ -12,5 +12,4 @@ export default defineConfig({
       },
     },
   },
-  base: "http://localhost:8080",
 });