axe-core/lib/checks/mobile/meta-viewport.json

Accessibility engine for automated Web UI testing

{
  "id": "meta-viewport",
  "evaluate": "meta-viewport-scale.js",
  "options": {
    "scaleMinimum": 2
  },
  "metadata": {
    "impact": "critical",
    "messages": {
      "pass": "<meta> tag does not disable zooming on mobile devices",
      "fail": "<meta> tag disables zooming on mobile devices"
    }
  }
}