pyscript with websocket crashes the HA front end

[and7ey]

I've created pyscript to enable/disable integrations. It uses the websocket to control it.
Each time I run it with dev console, it leads to connection lost and HA front end stops working. HA CLI is available. The home-assistant.log doesn't contain any useful information.

import websocket 
import json

@service(supports_response="optional")
def manage_integration(integration_id, state, ip, token):
    """yaml
name: Manage integration
description: Pyscript to enable or disable integration
fields:
  integration_id:
    description: id of the integration to enable or disable (see hidden file .storage/core.config_entries to get it)
    example: e59119ee8e73f49aae212385b8758a7b
    required: true
    selector:
      text:     
  state:
    description: target state of the integration
    example: disable
    required: true
    selector:
      select:
        options:
          - disable
          - enable
  ip:
    description: Home Assistant IP and port
    example: 192.168.1.110:8123
    required: true
    selector:
      text:     
  token:
    description: long-lived access token (generate at http://home-assistant-ip:8123/profile/security)
    required: true
    selector:
      text:     
"""
    ws = websocket.WebSocket()
    ws.connect("ws://"+ip+"/api/websocket")

    json_auth = "{\"type\":\"auth\",\"access_token\":\""+token+"\"}"
    ws.send(json_auth)
    wsid = 0

    if state == 'enable':
        json_state = "{\"type\":\"config_entries/enable\",\"entry_id\":\""+integration_id+"\",\"disabled_by\":null,\"id\":"+str(wsid)+"}"
    elif state == 'disable':
        json_state = "{\"type\":\"config_entries/disable\",\"entry_id\":\""+integration_id+"\",\"disabled_by\":\"pyscript\",\"id\":"+str(wsid)+"}"
    ws.send(json_state)
    
    return json.loads(ws.recv())