from flask import Flask, render_template

app = Flask(__name__)

@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def catch_all( path ) : 
    return render_template( 'index.html' )

if __name__ == '__main__' :
    app.run(
        debug = True,
        host = 'localhost',
        port = 5003
    )

