Same error here. It’s OKay if I login in local without using https. If I use my external URL using https going thru a Reverse Proxy (hosted on Synology) I have following errors:
WebSocket connection to 'wss://XXXXXXXXXXX.fr/api/websocket?latest' failed: Error during
WebSocket handshake: Unexpected response code: 403
n @ core-79cea8ece91ee5a5dc48f1a8b89b5d1e.js:1
(anonymous) @ core-79cea8ece91ee5a5dc48f1a8b89b5d1e.js:1
(index):1 Uncaught (in promise) 1
Promise.then (async)
validatePassword @ frontend-622a02e67c4395ecfd7ccaeb704f00ad.html:53
(anonymous) @ frontend-622a02e67c4395ecfd7ccaeb704f00ad.html:1
A bad HTTP response code (403) was received when fetching the script.
service_worker.js Failed to load resource: net::ERR_INVALID_RESPONSE
I’ve not touch the Syno and it was working with the previous version: 0.63.3
LOL it was the same reason but it took a huge time for me to understand the previous answer. The IP of my Synology NAS which act as a reverse proxy was banned by HA. Need to clean ip_bans.yaml file in configuration folder.