Uploadbutton problem?

Hi again I would like to know why like this. When I try to debug my upload button using DEV MODE. When I try to add a selected document it will upload the file automatically using dev mode . But when I try it LIVE it doesn’t work. I need to press the submit button to make it work.

I already try this code but it doesn’t work when I try it live. It only works in Dev mode (preview mode) why is that?

$w("#myUploadButton").startUpload()
  .then( (uploadedFile) => {
    let url = uploadedFile.url;  // "wix:image://v1/68d3a9_1de7529c444b4c9eb38401f8efe0cad2.jpg/flowers.jpg#originWidth=1970&originHeight=1120"
  } )
  .catch( (uploadError) => {
    let errCode = uploadError.errorCode;  // 7751
    let errDesc = uploadError.errorDescription; // "Error description"
  } );

I’m planning also to implement this
Velo Tutorial: Using the Upload Button with Code | Help Center | Wix.com but it only works in preview mode not in live mode. :frowning: