HTTPS blocks WebSocket connections to the ESP.
Browsers refuse ws:// from an https:// page (mixed content policy). The MQTT connection will never work from this URL. Fix: open this app directly from the ESP —
Connection Status
Disconnected
Reconnects
0
Messages
0
Errors
0
Configuration
Raw WebSocket Test (no MQTT library)
Tests if the TCP/WS layer works at all — useful when MQTT.js fails silently.