Unable to add Firebase Dynamic Links to a project using a custom domain

Question

I\'ve created Firebase Dynamic Links in other projects before using the page.link URL prefix (the only option at the time). However that no longer appears to be an option when e

Answer 1

For us the issue was that we we're using the default Firebase Hosting site for serving our web-app at all routes ("/**"). Serving our web-app from a different domain that dynamic links is the way it should be for us, since links should not interfere with the web-app.

To serve links from a different domain than our web-app, I created a new site just for links and attached our custom domain to that site. Now we have two Firebase Hosting sites. The first default one for our web-app and the second one for Firebase Dynamic Links.

After this setting up Dynamic Links with a custom domain attached to the second Firebase Hosting site worked flawlessly. See the screenshot for more details:

EDIT1: the web-app's firebase.json as requested by @cocacrave:

{
  "hosting": {
    "public": "public",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "rewrites": [
      {
        "source": "**",
        "function": "nuxtApp"
      }
    ]
  }
}