Check if you didn't set RequestProperty Content-Type to the wrong type or if you're trying to send the wrong file to the server.

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  • GitHub comment 4#154647978
    via GitHub by mig5
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    via GitHub by vemacs
  • GitHub comment 2389#186869932
    via GitHub by ghost
    • Server returned HTTP response code: 403 for URL: at at at at hudson.cli.FullDuplexHttpStream.<init>( at hudson.cli.CLI.connectViaHttp( at hudson.cli.CLI.<init>(

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