That option simply sets a flag in the firebase.json
file to redirect all URLs to /index.html
.
"rewrites": [ {
"source": "**",
"destination": "/index.html"
} ]
See the documentation of Firebase Hosting for more information, which also contains this fuller example:
"hosting": { // ... // Add the "rewrites" attribute within "hosting" "rewrites": [ { // Serves index.html for requests to files or directories that do not exist "source": "**", "destination": "/index.html" }, { // Serves index.html for requests to both "/foo" and "/foo/**" // Using "/foo/**" only matches paths like "/foo/xyz", but not "/foo" "source": "/foo{,/**}", "destination": "/index.html" }, { // Excludes specified pathways from rewrites "source": "!/@(js|css)/**", "destination": "/index.html" } ] }