Comment by QuantumNomad_

10 minutes ago it was working. Now I get a Cloudflare bad gateway error. To me this is indicative of truth to the claim that the page might be running on a microcontroller or other weak machine :) But the page itself never mentioned if the HTML, CSS and JS is actually served from the ESP32-S31 or not. Or if the only traffic to the microcontroller was the “pokes” being sent by clicking the button on the page.