simple 2d gcode visualize

[mkeyno]

hi , sorry to open ticket for my question , actually I made my low weight web interface on ESP8266 which is use the JavaScript readerFile to load the gcode file on client side , I use the GRBL as cnc interpreter and connected to my ESP and its work well, however I intend to add visualize tab page so I could show gcode tool path but I couldn't find single file JS code (no Jquery) , I really appreciated if I have any hint on how to use essential this repo code for simple 2d visualize purpose