If you are using Dynamic Web TWAIN or Dynamsoft Camera SDK you may have noticed that there is a warning shown when opening the browser console that states:
"Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/."
This message is expected, it is necessary in order for the SDK to work correctly.
This should have no negative impact upon the operation of the product.