Update app.py

app.py

@@ -364,13 +364,13 @@ with gr.Blocks(css=css) as demo:
               BABYLON.Engine.LastCreatedScene.activeCamera.metadata.pipeline.imageProcessing.exposure = this.value;
               this.parentNode.childNodes[2].innerText = BABYLON.Engine.LastCreatedScene.activeCamera.metadata.pipeline.imageProcessing.exposure;
             '/><span>1.0</span>""")
-            canvas = gr.HTML(value="""<a href='#' onclick=\"
-              var cntxt = document.getElementsByClassName('model3D')[0].getElementsByTagName('canvas')[0].getContext('webgl2');
+            canvas = gr.HTML(value="""<a href='#' onclick='
+              var cntxt = document.getElementsByClassName(\'model3D\')[0].getElementsByTagName(\'canvas\')[0].getContext(\'webgl2\');
               this.innerText = cntxt;
               BABYLON.Tools.CreateScreenshot(BABYLON.Engine.LastCreatedScene.getEngine(), BABYLON.Engine.LastCreatedScene.activeCamera, {forceDownload: false, precision: 1.0, (durl) => {
-                document.getElementById('img_out').src = durl;
+                document.getElementById(\'img_out\').src = durl;
               }});
-            \">webgl2</a><br/><img src='' id='img_out'/>""")
+            '/>webgl2</a><br/><img src='' id='img_out'/>""")
             render = gr.Button("Render")
     
     def on_submit(uploaded_video,model_type):