Ingress closes add-on WebSocket connections on every 40s #6143
Description
Describe the issue you are experiencing
Hi, I'm having a really annoying issue while testing a new add-on I'm "developing".
On every 40 seconds, the WebSocket connection is closed.
Is this a known issue? How to prevent that?
Cloudflare has a similar "issue" where dormant WebSocket connections are closed in 100 seconds.
I implemented a WebSocket keepalive mechanism (selkies-project/selkies#198) which "fixes" the problem for Cloudflare (I confirmed).
However, even lowering the heartbeat interval to something like 15s does not prevent the WebSocket from being closed on every 40s in the Home Assistant ingress.
Any feedback is appreciated.
What type of installation are you running?
Home Assistant OS
Which operating system are you running on?
Home Assistant Operating System
Steps to reproduce the issue
- Install my (WIP) Webtop add-on: https://github.com/felipecrs/webtop-hass-addon
- Start it and open its UI through ingress
- Keep it open for a while. Notice the connection will break after 40 seconds.
Anything in the Supervisor logs that might be useful for us?
No, there's nothing useful there from what I can tell.
System information
| version | core-2025.8.3 |
|---|---|
| installation_type | Home Assistant OS |
| dev | false |
| hassio | true |
| docker | true |
| container_arch | amd64 |
| user | root |
| virtualenv | false |
| python_version | 3.13.3 |
| os_name | Linux |
| os_version | 6.12.41-haos |
| arch | x86_64 |
| timezone | America/Sao_Paulo |
| config_dir | /config |
Home Assistant Community Store
| GitHub API | ok |
|---|---|
| GitHub Content | ok |
| GitHub Web | ok |
| HACS Data | ok |
| GitHub API Calls Remaining | 5000 |
| Installed Version | 2.0.5 |
| Stage | running |
| Available Repositories | 2170 |
| Downloaded Repositories | 11 |
Home Assistant Cloud
| logged_in | false |
|---|---|
| can_reach_cert_server | ok |
| can_reach_cloud_auth | ok |
| can_reach_cloud | ok |
Home Assistant Supervisor
| host_os | Home Assistant OS 16.1 |
|---|---|
| update_channel | stable |
| supervisor_version | supervisor-2025.08.3 |
| agent_version | 1.7.2 |
| docker_version | 28.3.3 |
| disk_total | 468.7 GB |
| disk_used | 127.4 GB |
| healthy | true |
| supported | true |
| host_connectivity | true |
| supervisor_connectivity | true |
| ntp_synchronized | true |
| virtualization | |
| board | generic-x86-64 |
| supervisor_api | ok |
| version_api | ok |
| installed_addons | Advanced SSH & Web Terminal (21.0.2), Studio Code Server (5.19.3), ESPHome Device Builder (2025.8.2), Mosquitto broker (6.5.1), Glances (0.21.1), Cloudflared (5.3.8), Nginx Proxy Manager (2.1.0), Hikvision Doorbell (3.0.22), Asterisk (5.3.1), Frigate Beta (0.16.0), Netdata (v2.6.3), Tailscale with features (0.25.0.12), Zigbee2MQTT (2.6.0-1), Webtop (0.1.0), Xpra (0.1.0) |
Dashboards
| dashboards | 5 |
|---|---|
| resources | 4 |
| views | 10 |
| mode | storage |
Network Configuration
| adapters | lo (disabled), enp2s0 (enabled, default, auto), docker0 (disabled), hassio (disabled), veth998203c (disabled), veth8d6d6f8 (disabled), veth8dbc95d (disabled), veth70e1787 (disabled), vethc320961 (disabled), vethd142d1f (disabled), veth25ae66b (disabled), veth98425d0 (disabled), vethba41f6a (disabled), veth4fb44c2 (disabled), vethe556973 (disabled), veth3d4f32e (disabled), veth2f6fb5a (disabled) |
|---|---|
| ipv4_addresses | lo (127.0.0.1/8), enp2s0 (192.168.1.10/24), docker0 (172.30.232.1/23), hassio (172.30.32.1/23), veth998203c (), veth8d6d6f8 (), veth8dbc95d (), veth70e1787 (), vethc320961 (), vethd142d1f (), veth25ae66b (), veth98425d0 (), vethba41f6a (), veth4fb44c2 (), vethe556973 (), veth3d4f32e (), veth2f6fb5a () |
| ipv6_addresses | lo (::1/128), enp2s0 (fe80::8abc:dfb1:de66:b999/64), docker0 (fe80::4c90:4aff:feb6:3644/64), hassio (fe80::b48c:b9ff:fe87:d714/64), veth998203c (fe80::147f:58ff:fe9d:6ce6/64), veth8d6d6f8 (fe80::d0ab:8fff:fe73:2326/64), veth8dbc95d (fe80::1cde:92ff:fee4:11ce/64), veth70e1787 (fe80::2880:edff:fe46:96b7/64), vethc320961 (fe80::5040:e7ff:fe65:e286/64), vethd142d1f (fe80::98d4:99ff:fef4:b4ed/64), veth25ae66b (fe80::ccbb:3eff:fe42:7f7c/64), veth98425d0 (fe80::3035:26ff:fe5c:3ba3/64), vethba41f6a (fe80::acfb:c0ff:fea1:63b1/64), veth4fb44c2 (fe80::38eb:1ff:fe3e:c849/64), vethe556973 (fe80::983b:6fff:fe20:2b7b/64), veth3d4f32e (fe80::3d:6dff:fe10:f976/64), veth2f6fb5a (fe80::cfe:42ff:fe91:eff1/64) |
| announce_addresses | 192.168.1.10, fe80::8abc:dfb1:de66:b999 |
Recorder
| oldest_recorder_run | August 15, 2025 at 11:02 PM |
|---|---|
| current_recorder_run | August 29, 2025 at 1:45 PM |
| estimated_db_size | 811.73 MiB |
| database_engine | sqlite |
| database_version | 3.48.0 |
Sonoff
| version | 3.9.2 (a7bce04) |
|---|---|
| cloud_online | 1 / 6 |
| local_online | 1 / 1 |
Supervisor diagnostics
config_entry-hassio-8b5b34443b108b2dc71bf2f3232cfa91.json
Additional information
No response