firebase.json with support for HTML5 routing and cache busting (as long as the compiled html file also supports cache busting).

gistfile1.txt

  {
    "firebase": "my-awesome-app",
    "rewrites": [ {
      "source": "**",
      "destination": "/index.html"
    } ],
    "headers": [ {
      "source" : "**/*.html",
      "headers" : [ {
        "key" : "Cache-Control",
        "value" : "private, max-age=0, no-cache"
      } ]
    } ]
  }