Docker image 3.30.1 won't load information about anything

[Ekimik]

Q&A (please complete the following information)

• OS: Linux Mint
• Browser: chrome
• Version: 83
• Method of installation: Docker
• Swagger-UI version: v3.30.1 (Docker image tage)
• Swagger/OpenAPI version: OpenAPI 3.0]

Content & configuration

Example Swagger/OpenAPI definition:

{
  "openapi": "3.0.0",
  "info": {
    "version": "1.0.0",
    "title": "Search API"
  },
  "servers": [
    {
      "url": "..."
    }
  ],
  "paths": {
    "/status": {
      "get": {
        "summary": "API status",
        "responses": {
          "200": {
            "description": "API is fully functional"
          },
          "500": {
            "description": "API is down"
          }
        }
      }
    },
    "/search": {
      "get": {
        "summary": "Search by given params",
        "responses": {
          "200": {
            "description": "Response for given query"
          },
          "400": {
            "description": "Invalid input params supplied"
          }
        },
        "parameters": [
          {
            "name": "q",
            "description": "Query",
            "required": true,
            "in": "query",
            "schema": {
              "type": "string"
            }
          }
        ]
      }
    }
  },
  "components": {
    "schemas": {
      "ErrorResponse": {
        "type": "object",
        "properties": {
          "message": {
            "type": "string"
          }
        }
      }
    }
  }
}

Swagger-UI configuration options:
None

Describe the bug you're encountering

This issue can relate to #6249. Everything works fine with Docker image swaggerapi/swagger-ui:v3.30.0.

To reproduce...

Steps to reproduce the behavior:

1. Start Docker image with Swagger UI based on v3.30.1 tag, e.g.

docker run --rm --name searchapidoc -p 80:8080 -e SWAGGER_JSON=/var/cache/searchapi/searchapi.json -v <path-to-dir-with-api-definition>:/var/cache/searchapi swaggerapi/swagger-ui:v3.30.1

2. Go to http://localhost/
3. Click to any endpoint or schema object
4. See error - No information from API definition are loaded

Expected behavior

Information about API should be diplayed. Take same steps as mentioned above when reproducing error behavior, but with tag v3.30.0 to see correct behavior.

Screenshots

[sudodoki]

I assume I'm seeing the same issue. Worst thing our api doc is using CDN script without version freeze, so it kinda broke everywhere 😅
Swagger is super useful to us, thanks for keeping it running!

[sudodoki]

Oh, I guess this is duplicate of #6249

[hkosova]

@Ekimik can you please try v3.30.2?

[woostundy]

It casue by this CDN resource is still v3.30.1: https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-bundle.js , and FastAPI use it.

[Ekimik]

With Docker image swaggerapi/swagger-ui:v3.30.2 everything works fine on my local machine