Swagger-ui doesnt work with yaml file.

• OS: [WINDOWS 10]
• Browser: [chrome, safari]
• docker-compose
• Swagger-UI version: latest
• Swagger/OpenAPI version: latest

Im trying to start swagger-ui on docker using docker-compose
i have a custom yaml file that i need to load.
i converted my yaml file into a json

swagger-ui:
image: swaggerapi/swagger-ui
container_name: "swagger-ui"
ports:
- "8888:8080"
volumes:
- ./swagger/swagger.json:/swagger.json
environment:
SWAGGER_JSON: /swagger.json
# API_URL: ""
networks:
- xdsjdh

and it works perfectly, but if i try with yaml file

swagger-ui:
image: swaggerapi/swagger-ui
container_name: "swagger-ui"
ports:
- "8888:8080"
volumes:
- ./swagger/swagger.yaml:/swagger.yaml
environment:
SWAGGER_JSON: /swagger.yaml
# API_URL: ""
networks:
- xdsjdh

when i look swagger ui page on ./swagger.yaml
i got a error message "failed to fetch /swagger.yaml"

all files are in the same directory
swagger.json and swagger.yaml

Thanks in advance.

Start by reproducing the issue with the provided docker-compose configuration, mounting swagger.yaml and setting SWAGGER_JSON to /swagger.yaml. Compare the YAML and JSON cases in Swagger UI and verify that the mounted YAML specification loads successfully without the “failed to fetch /swagger.yaml” error.