Error 400 "Bad Request. Could not access bucket" when uploading file to Firebase storage

Question

I'm trying to upload a file to Firebase storage using the web API, but the server return this error:

{
  "error": {
    "code": 400,
    "message": "Bad Request. Could not access bucket XXXX.appspot.com"
  }
}

I have so far:

• checked the permissions in the Cloud console (see https://stackoverflow.com/a/50298931/990193 )
• checked that the APIs are enabled in the developers console (see the comments in https://stackoverflow.com/a/37334122/990193 )
• configured for CORS (see https://firebase.google.com/docs/storage/web/download-files?authuser=0#cors_configuration )

BTW downloading file works just fine.

Answer 1

Turns out I was calling the put method on my storage ref with a non valid path. With a proper file path it works.

Very misleading error message from firebase nevertheless...