Live-Updates doesn't work on Raspberry Pi 3[BUG]

• replace the result of pip list | grep dash below

DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
dash                               1.3.0      
dash-core-components               1.2.0      
dash-daq                           0.2.1      
dash-html-components               1.0.1      
dash-renderer                      1.1.0      
dash-table                         4.3.0

• if frontend related, tell us your Browser, Version and OS

Raspbian GNU/Linux 9 using Chromium

Describe the bug

When following the Live-Updates tutorial from https://dash.plot.ly/live-updates, the graphs appear in the web browser, but the graphs are empty. Below are screen shots of what happened vs. what is expected respectively.

SOLUTION:

The solution was to simply increase the interval to 1 * 10000 ms. Then the live-updates worked as expected. Not entirely sure why, but wanted to bring this issue up. Thanks!

Beginne damit, das Tutorial zu Live-Updates auf Raspbian GNU/Linux 9 mit Chromium zu reproduzieren, verwende dabei die gemeldeten Paketversionen und vergleiche das Standardintervall mit 10000 ms. Als erledigt gilt die Aufgabe, wenn die Diagramme zuverlässig im dokumentierten Intervall gefüllt werden oder die Raspberry-Pi-spezifische Ursache und der erforderliche Workaround dokumentiert sind.