vercel.json

{
  "builds": [{
    "src": "package.json",
    "use": "@vercel/static-build",
    "config": { "distDir": "_site" }
  }],
  "redirects": [
    { "source": "/slack", "destination": "https://jamstatic.herokuapp.com" },
    { "source": "/slack/", "destination": "https://jamstatic.herokuapp.com" }
  ],
  "headers": [
    {
      "source": "/:all*(svg|jpg|jpeg|gif|png|webp|css|mp4|webm|woff|woff2|ttf|eot|ico|js|json|xml)",
      "headers": [
        {
          "key": "Cache-Control",
          "value": "public, max-age=31536000"
        }
      ]
    },
    {
      "source": "/manifest.webmanifest",
      "headers": [
        {
          "key": "Content-Type",
          "value": "application/manifest+json"
        },
        {
          "key": "Cache-Control",
          "value": "private, max-age=31536000"
        }
      ]
    },
    {
      "source": "/serviceworker.js",
      "headers": [
        {
          "key": "Cache-Control",
          "value": "private, max-age=0"
        }
      ]
    }
  ]
}