contrib.nodejsscan.good_helmet_checks.helmet_header_xss_filter

rules:
  - id: helmet_header_xss_filter
    message: "X-XSS-Protection header is present. More information:
      https://helmetjs.github.io/docs/xss-filter/"
    languages:
      - javascript
    severity: WARNING
    patterns:
      - pattern-not: |
          $HELMET(..., {xssFilter: false}, ...)
      - pattern-either:
          - pattern: |
              $APP.use(helmet())
          - pattern: |
              helmet.xssFilter(...)
          - pattern: |
              xssFilter(...)
          - pattern: |
              helmet({xssFilter: ...})
    metadata:
      category: security
      technology:
        - node.js
        - express
      license: Commons Clause License Condition v1.0[LGPL-2.1-only]