ImmutableSet<String> uppercaseAcronyms =
        ImmutableSet.of(
            "CH", "ID", "DNT", "DNS", "DPR", "ECT", "GPC", "HTTP2", "IP", "MD5", "P3P", "RTT", "TE",
            "UA", "UID", "URL", "WWW", "XSS");

    for (Field field : httpHeadersFields()) {
      assertEquals(
          upperToHttpHeaderName(field.getName(), specialCases, uppercaseAcronyms), field.get(null));
    }
  }

   * locally.
   *
   * @since 24.1
   */
  public static final String X_DOWNLOAD_OPTIONS = "X-Download-Options";

  /** The HTTP {@code X-XSS-Protection} header field name. */
  public static final String X_XSS_PROTECTION = "X-XSS-Protection";

  /**
   * The HTTP <a
   * href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control">{@code

# Inline MIME types for the response.
response.inline.mimetypes=application/pdf,text/plain
# HTTP headers for the response.
response.headers=\
text/html=X-XSS-Protection: 1; mode=block\n\
text/html=Content-Security-Policy: reflected-xss block\n\
text/html=X-Frame-Options: SAMEORIGIN\n\


# document index

# Index name for search documents.
index.document.search.index=fess.search

    String RESPONSE_INLINE_MIMETYPES = "response.inline.mimetypes";

    /** The key of the configuration. e.g. text/html=X-XSS-Protection: 1; mode=block<br>
     * text/html=Content-Security-Policy: reflected-xss block<br>
     * text/html=X-Frame-Options: SAMEORIGIN<br>
     *  */
    String RESPONSE_HEADERS = "response.headers";