A python flask example code for javascript-ROOT@CERN. It reads a root-file from local and provide a root-file viwer.
When you want to draw with 'colz' option, right click on the histogram name in left panel and click 'Draw->colz'.
Install flask
pip3 install -r requirements.txt
python3 app.py
then, open your browser, type in utl bar '127.0.0.1:5000'
