Intermittent CORS issue when uploading files to Google Cloud Storage

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3

It turns out our issue was an automated terraform script that was running and resetting the cors configuration we had manually applied. It’s working again now. We used a file that looks like:

[
    {
      "origin": ["https://retool.ourcompany.com"],
      "responseHeader": ["Content-Type", "x-goog-acl"],
      "method": ["GET", "HEAD","POST", "PUT", "DELETE"],
      "maxAgeSeconds": 3600
    }
]

We applied it using

gsutil cors set path/to/cors-file.json gs://our-bucket

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