Update app.py

app.py

@@ -639,13 +639,11 @@ async(p, d, n)=>{
             resolution: 16,
             size: 512
           }, BABYLON.Engine.LastCreatedScene);
-          try {
           for(i = 0; i < BABYLON.Engine.LastCreatedScene.getMeshByName("dome_mesh")._children.length; i++) {
             let mesh = BABYLON.Engine.LastCreatedScene.getMeshByName("dome_mesh")._children[i];                
             mesh.dispose(false, true);
           }
-          BABYLON.Engine.LastCreatedScene.getMeshByName("dome_mesh").applyDisplacementMap(d.background.url, 0, 255, function(m){BABYLON.Engine.LastCreatedScene.addMesh(m,false);alert(JSON.stringify(m));}, null, null, true, function(e){alert(e);});
-          } catch(e){alert(e);}
+          BABYLON.Engine.LastCreatedScene.getMeshByName("dome_mesh").applyDisplacementMap(d.background.url, 0, 255, function(m){try{BABYLON.Engine.LastCreatedScene.addMesh(m,false);alert(JSON.stringify(m));}catch(e){alert(e);}}, null, null, true, function(e){alert(e);});
         });
         if (!BABYLON.Engine.LastCreatedScene.activeCamera.metadata) {
           BABYLON.Engine.LastCreatedScene.activeCamera.metadata = {