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  <blog_title>トルネード</blog_title>
  <blog_url>https://mojelder.hatenablog.com/</blog_url>
  <categories>
    <anon>C#</anon>
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  <description>C# の HttpClient でエラー出た One or more errors occurred. (An invalid Unicode character by IDN standards was specified in the host.) ↑この エラーは初めて見た お客様 の 環境設定 で Proxy 設定するさいに 全角 ( Unicode ) が混ざってたということでした。</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2023-10-15 10:26:31</published>
  <title>HttpClient An invalid Unicode character by IDN standards was specified in the host.</title>
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