diff --git a/webclient/dist/content-viewers/stl.html b/webclient/dist/content-viewers/stl.html
index 11c9b7f..7c39978 100644
--- a/webclient/dist/content-viewers/stl.html
+++ b/webclient/dist/content-viewers/stl.html
@@ -63,7 +63,7 @@
                 + 'Try enabling hardware acceleration or a different browser.</p>'
                 + '</div>';
             console.error('WebGL init failed:', err);
-            return;
+            throw err;
         }
 
         const controls = new OrbitControls(camera, renderer.domElement);
diff --git a/webclient/public/content-viewers/stl.html b/webclient/public/content-viewers/stl.html
index 11c9b7f..7c39978 100644
--- a/webclient/public/content-viewers/stl.html
+++ b/webclient/public/content-viewers/stl.html
@@ -63,7 +63,7 @@
                 + 'Try enabling hardware acceleration or a different browser.</p>'
                 + '</div>';
             console.error('WebGL init failed:', err);
-            return;
+            throw err;
         }
 
         const controls = new OrbitControls(camera, renderer.domElement);