SyntaxHighlight always enabled with latest swaggerapi/swagger-ui

Q&A (please complete the following information)

• OS: Windows
• Browser: chrome
• Version: 104.0.xxxxxxx
• Method of installation: war
• Swagger-UI version: 4.15.5 and latest
• Swagger/OpenAPI version: NA

Describe the bug you're encountering

I am running swaggerapi/swagger-ui using docker in my local and syntaxHighlighting is not working as expected with syntaxHighlight=false query-parameter. I tried various approaches to disable syntaxHighlighting.

After each approach, I accessed this url http://localhost:8080/?syntaxHighlight=falseand expected syntaxHighlighting to be disabled for all the request & response body. But all are enabled by default.

Approach 1:

1. use docker-compose.yaml with QUERY_CONFIG_ENABLED: "true"
2. spin up the container using the command docker compose up.

docker-compose.yaml

version: '3'
services:
    swagger-ui:
        ports:
          - 8080:8080
        image: swaggerapi/swagger-ui:v4.15.5
        restart: always
        environment:
                QUERY_CONFIG_ENABLED: "true"
                URLS: "[
                        { url: 'https://petstore.swagger.io/v2/swagger.json', name: 'Petstore' }
                       ]"

Approach 2:

1. use docker file
2. build own image using the command docker build -t <image-name> .
3. run the docker image docker run -p 8080 <image-name>

Dockerfile

FROM swaggerapi/swagger-ui
ENV QUERY_CONFIG_ENABLED="true"
ENV URLS="[ { url: 'https://petstore.swagger.io/v2/swagger.json', name: 'Petstore' } ]"

Approach 3: (same as approach #2 with swagger-config.json)
Followed steps mentioned in Approach2, but query configuration itself is not enabled.

Dockerfile

FROM swaggerapi/swagger-ui
`ENV CONFIG_URL="file:///D:/Argon/Repo/Skyline/SwaggerAPI/swagger-config.json"`
ENV URLS="[ { url: 'https://petstore.swagger.io/v2/swagger.json', name: 'Petstore' } ]"

swagger-config.json

{
	"queryConfigEnabled": true,
	"syntaxHighlight": false,
	"syntaxHighlight.activate": false,
	"displayOperationId":  true
}

Please let me know whether I am missing something here.

Reproduce the issue with Swagger UI v4.15.5 or latest using the documented Docker environment variables, the ?syntaxHighlight=false URL, and the provided swagger-config.json. Start by tracing how query configuration and syntaxHighlight are applied, then verify that request and response bodies render without syntax highlighting when the setting is false.