Basic Auth is broken when using non-ASCII characters

[Anastasiyaaa]

Q&A (please complete the following information)

• OS: Window
• Browser: Chrome
• Version: 92.0.4515.159
• Method of installation: dist assets
• Swagger-UI version: 3.41
• Swagger/OpenAPI version: OpenAPI 3.0.1

Content & configuration

Example Swagger/OpenAPI definition:

components:
  securitySchemes:
    Basic: 
      type: "http" 
      scheme: "basic"
    Security_Token: 
      type: "http"
      description: "Access Key:Secret Key"
      scheme: "bearer"
openapi: "3.0.1"
info:
  version: '3'
  title: test
  description: example for Auth
paths:
  /something:
    post:
      summary: Auth test
      responses:
        201:
          content:
            text/plain:
              schema:
                type: "string"
          description: "Created"
        401:
          content:
            text/plain:
              schema: 
                type: "string"
          description: "Authorization failed"
      security: [{Basic: []}, {Security_Token: []}]

Swagger-UI configuration options:

SwaggerUIBondle({
  dom_id: '#swagger-ui',
  deepLinking: true,
  presets: [
    SwaggerUIBundle.presets.apis,
    SwaggerUIStandalonePreset
  ],
  plugins: [
     SwaggerUIBundle.plugins.DownloadUrl
  ],
  layout: 'StandaloneLayout',
  defaultModelExpandDepth: "2",
  defaultModelsExpandDepth: "0",
  displayRequestDuration: "true",
  docExpansion: "none",
  oauth2RedirectUrl: "/swagger-ui/oauth2-redirect.html",
  operationsSorter: "method",
  tagsSorter: "alpha",
  tryItOutEnabled: "true",
  urls: [{url: "/api/docs/openapi/API v3", name: "API v3"}],
  validatorUrl: ""
})

Describe the bug you're encountering

Incorrect header if non-ASCII characters are used during authorize

To reproduce...

Steps to reproduce the behavior:

1. Open (SwaggerEditor)[https://editor.swagger.io/] in chrome
2. Paste the yaml file into the editor
3. Click the 'Authorize' button
4. Username: 'Ремонтник'
5. Password: 'Ремонтник'
6. Click the 'Authorize' button
7. Click the 'Close' button
8. Click the /something request
9. Click the 'Try it out' button
10. Click the 'Execute' button
11. -H 'Authorization: Basic IDU8Pj1CPTg6OiA1PD49Qj04Og==' \

Expected behavior

-H 'Authorization: Basic 0KDQtdC80L7QvdGC0L3QuNC6OtCg0LXQvNC+0L3RgtC90LjQug=='\

Screenshots

Additional context or thoughts

Same problem: Issue 2456