Hi! I have errors showing up when I deployed my polymer-starter-kit to Firebase.

In my local polymer serve command no errors could be seen. And even when I do firebase serve no errors could be seen.
When I do polymer build it produces 3 bundles:
And here's my firebase.json
{
"database": {
"rules": "database.rules.json"
},
"hosting": {
"public": "build/es6-unbundled",
"rewrites": [
{
"source": "!/__/**",
"destination": "/index.html"
},
{
"source": "**/!(*.js|*.html|*.css|*.json|*.svg|*.png|*.jpg|*.jpeg)",
"destination": "/index.html"
}
]
}
}
This is affecting my firebase-documents query. When deployed, my app loads at it should but the data from the firebase is not showing. But in my local everything loads...the app and the data.
I believe that issue is that you have a circular redirect which is attempting to load my-app.html twice.
I'm not entirely sure how Firebase's rewrite system works, but could it be that your first rule ("source": "!/__/**", "destination": "/index.html") is acting as a catch-all and preventing the proper page or 404 from being displayed, and instead loading index.html again?
@jsilvermist I'll try looking if I tried to load my my-app.html twice. But according to the docs in polymer-project.org, that's how I should format my firebase.json.
EDIT:
I didn't load my-app.html twice. I checked both in my local src and my builds src.
I just followed the steps from the tutorial (https://www.polymer-project.org/3.0/start/toolbox/deploy) and I got a lot of errors. Different from the one in the screenshot, but I guess related.

Same issue here.
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Any update of this?
Most helpful comment
I just followed the steps from the tutorial (https://www.polymer-project.org/3.0/start/toolbox/deploy) and I got a lot of errors. Different from the one in the screenshot, but I guess related.
