In your Chrome browser, go to 127.0.0.1:18619. You will be greeted by warning.
Step 1: Click “Advanced” at the bottom of the warning. A bit more text and a new button will appear.
Step 2: Click “Proceed to 127.0.0.1 (unsafe)”.
After that, you will see the following sign:
Now close Chrome (Ctrl + Shift + Q) and open it back again, and then try to use TWAIN in EMSOW.