Simple page to experiment with WebUSB for thermal printers.
Currently supports the Epson TM-T20 but should work with others.
Uses the [escpos-buffer](https://github.com/grandchef/escpos-buffer) library for generating the ESC/POS commands.
Uses Parcel for bundling.
$ yarn start
Go to https://localhost:1234. It has to be https because WebUSB requires it. Ignore the security warning.
Check the console for errors - nothing will be displayed on the page.