Update static/script.js

static/script.js

@@ -77,7 +77,12 @@ document.addEventListener('DOMContentLoaded', () => {
             method: 'POST',
             body: formData
         })
-        .then(response => response.blob())
+        .then(response => {
+            if (!response.ok) {
+                return response.json().then(err => { throw new Error(err.error) });
+            }
+            return response.blob();
+        })
         .then(blob => {
             const url = URL.createObjectURL(blob);
             result.style.display = 'block';
@@ -87,7 +92,7 @@ document.addEventListener('DOMContentLoaded', () => {
         })
         .catch(error => {
             console.error('Error:', error);
-            alert('An error occurred while processing the file.');
+            alert('An error occurred while processing the file: ' + error.message);
         });
     });
 });