[BUG] Browser hangs on Discover dashboard if no index pattern defined

[jazzl0ver]

Describe the bug

Opensearch was launched using the following docker-compose.yml (derived from https://opensearch.org/docs/latest/install-and-configure/install-opensearch/docker/#sample-docker-composeyml) on Debian 12 privileged LXC container:

version: '3'
services:
  opensearch: # This is also the hostname of the container within the Docker network (i.e. https://opensearch-node1/)
    image: opensearchproject/opensearch:latest # Specifying the latest available image - modify if you want a specific version
    container_name: opensearch
    environment:
      - discovery.type=single-node
      - bootstrap.memory_lock=true # Disable JVM heap memory swapping
      - plugins.security.system_indices.enabled=false
      - "OPENSEARCH_JAVA_OPTS=-Xms4096m -Xmx4096m" # Set min and max JVM heap sizes to at least 50% of system RAM
      - OPENSEARCH_INITIAL_ADMIN_PASSWORD=${OPENSEARCH_INITIAL_ADMIN_PASSWORD}    # Sets the demo admin user password when using demo configuration, required for OpenSearch 2.12 and later
    ulimits:
      memlock:
        soft: -1 # Set memlock to unlimited (no soft or hard limit)
        hard: -1
      nofile:
        soft: 65536 # Maximum number of open files for the opensearch user - set to at least 65536
        hard: 65536
    volumes:
      - /root/data:/usr/share/opensearch/data # Creates volume called opensearch-data1 and mounts it to the container
    ports:
      - 9200:9200 # REST API
      - 9600:9600 # Performance Analyzer
    networks:
      - opensearch-net # All of the containers will join the same Docker bridge network
  opensearch-dashboards:
    image: opensearchproject/opensearch-dashboards:latest # Make sure the version of opensearch-dashboards matches the version of opensearch installed on other nodes
    container_name: opensearch-dashboards
    ports:
      - 5601:5601 # Map host port 5601 to container port 5601
    expose:
      - "5601" # Expose port 5601 for web access to OpenSearch Dashboards
    environment:
      OPENSEARCH_HOSTS: '["https://opensearch:9200"]' # Define the OpenSearch nodes that OpenSearch Dashboards will query
    networks:
      - opensearch-net

networks:
  opensearch-net:

If no index patterns defined, the browser window (tried latest versions of FF and Chrome) got frozen in this state:

Related component

Other

To Reproduce

1. Launch from the docker-compose.yml
2. Open the Dashboards in the browser
3. Open Discover Dashboard
4. Window's got frozen

Expected behavior

Probably an alert should come up that at least one index pattern should be defined with a link or redirect to the Index Patterns page

Additional Details

Host/Environment (please complete the following information):

• OS: Debian 12
• Version 2.16

[dblock]

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