The user initiates a PostObject request, but in the policy form field, when an element in conditions is a list, its first item's value is not eq, starts-with, or content-length-range.

Example

Assume the text of the constructed policy form field is as follows:

{​
  "conditions": [​
    ["abc","$bucket","examplebucket"]​
  ],​
  "expiration":"2023-12-28T15:04:05Z"​
}​

If this is used to construct the policy form field and send the request, this error will be returned.

Solution

Refer to PostObject to properly construct the request form field and ensure the policy form field values are valid.

Last updated: 2025.10.11 16:00:18

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