telegram_bot will not parse html tags in message

[weswitt]

The problem

using the automation below i get an error saying unsupported tag. the automation clearly has the parse_mode set to html, yet it rejects valid html tags in the message.

What version of Home Assistant Core has the issue?

System Information version | core-2024.4.2 -- | -- installation_type | Home Assistant Supervised dev | false hassio | true docker | true user | root virtualenv | false python_version | 3.12.2 os_name | Linux os_version | 6.1.0-17-amd64 arch | x86_64 timezone | America/Los_Angeles config_dir | /config

Home Assistant Community Store

GitHub API | ok -- | -- GitHub Content | ok GitHub Web | ok GitHub API Calls Remaining | 5000 Installed Version | 1.34.0 Stage | running Available Repositories | 1400 Downloaded Repositories | 18

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 | Debian GNU/Linux 12 (bookworm) -- | -- update_channel | stable supervisor_version | supervisor-2024.04.0 agent_version | 1.6.0 docker_version | 24.0.7 disk_total | 37.6 GB disk_used | 35.8 GB healthy | true supported | true supervisor_api | ok version_api | ok installed_addons | Zigbee2MQTT (1.35.1-1), Studio Code Server (5.15.0), Terminal & SSH (9.13.0), File editor (5.8.0), go2rtc (1.8.5), Zigbee2MQTT (1.35.1-1)

Dashboards

dashboards | 12 -- | -- resources | 17 views | 13 mode | storage

Recorder

oldest_recorder_run | April 7, 2024 at 10:34 PM -- | -- current_recorder_run | April 12, 2024 at 10:45 AM estimated_db_size | 308.71 MiB database_engine | sqlite database_version | 3.44.2

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

alias: Waterflow Report
description: ""
trigger:
  - platform: mqtt
    topic: waterflow/report
condition: []
action:
  - service: telegram_bot.send_message
    data:
      authentication: digest
      title: Waterflow Report
      parse_mode: html
      message: >-
        North stall: {{trigger.payload_json['north']}}<br>South stall:
        {{trigger.payload_json['south']}}
mode: single

Anything in the logs that might be useful for us?

Logger: homeassistant.components.telegram_bot
Source: components/telegram_bot/__init__.py:692
integration: Telegram bot (documentation, issues)
First occurred: 3:32:20 PM (2 occurrences)
Last logged: 3:32:20 PM

Error sending message: Can't parse entities: unsupported start tag "br" at byte offset 38. Args: (-988501590, 'Waterflow Report\nNorth stall: 0.843435<br>South stall: 3.12291'), kwargs: {'parse_mode': <ParseMode.HTML>, 'disable_web_page_preview': None, 'disable_notification': False, 'reply_to_message_id': None, 'reply_markup': None, 'read_timeout': None}

Additional information

No response

[home-assistant[bot]]

telegram_bot documentation telegram_bot source

[weswitt]

thanks bot, i've already read all that but sadly it does not answer the problem

[rapejim]

This is not an issue in Home Assistant, you are using an HTML tag (the "br" tag, replace it for \n) not supported by Telegram bots. Take a look at the supported HTML tags in their official documentation: https://core.telegram.org/bots/api#html-style Here is a screenshot with the info.