func (e NotImplemented) Error() string {
	return e.Message
}

// UnsupportedMetadata - unsupported metadata
type UnsupportedMetadata struct{}

func (e UnsupportedMetadata) Error() string {
	return "Unsupported headers in Metadata"
}

// isErrBucketNotFound - Check if error type is BucketNotFound.
func isErrBucketNotFound(err error) bool {
	if errors.Is(err, errVolumeNotFound) {
		return true
	}

				return false
			}
		}
	}

	if len(ef.Metadata) > 0 && !obj.DeleteMarker {
		for _, kv := range ef.Metadata {
			// Object (version) must match all x-amz-meta and
			// standard metadata headers
			// specified in the filter
			var match bool
			for k, v := range obj.UserDefined {
				if !stringsHasPrefixFold(k, "x-amz-meta-") && !isStandardHeader(k) {
					continue
				}

				"message/example",
				"message/external-body",
				"message/global",
				"message/global-delivery-status",
				"message/global-disposition-notification",
				"message/global-headers",
				"message/http",
				"message/imdn+xml",
				"message/news",
				"message/partial",
				"message/s-http",
				"message/sip",
				"message/sipfrag",
				"message/tracking-status",

tType||t.contentType)&&T.setRequestHeader("Content-Type",v.contentType),T.setRequestHeader("Accept",v.dataTypes[0]&&v.accepts[v.dataTypes[0]]?v.accepts[v.dataTypes[0]]+("*"!==v.dataTypes[0]?", "+zt+"; q=0.01":""):v.accepts["*"]),v.headers)T.setRequestHeader(i,v.headers[i]);if(v.beforeSend&&(!1===v.beforeSend.call(y,T,v)||h))return T.abort();if(u="abort",b.add(v.complete),T.done(v.success),T.fail(v.error),c=Vt(_t,v,t,T)){if(T.readyState=1,g&&m.trigger("ajaxSend",[T,v]),h)return T;v.async&&0<v.tim...

Instead of importing documents, configure Fess to crawl your data sources:

**Web Crawling**:
- **Admin Path**: Crawler > Web
- **Supports**: HTTP/HTTPS websites
- **Features**: JavaScript rendering, authentication, custom headers

**File Crawling**:
- **Admin Path**: Crawler > File
- **Supports**: SMB, FTP, local file systems
- **Features**: Access control, file type filtering

**Data Store Crawling**:

 *   <li>Storing the HTML content as data in the {@link ResultData}.</li>
 *   <li>Extracting child URLs from the HTML content based on configured rules.</li>
 *   <li>Handling redirect URLs specified in the response headers.</li>
 * </ol>
 * <p>
 * The class also provides methods for configuring features and properties of the
 * underlying DOM parser, as well as defining rules for extracting child URLs
 * from specific HTML tags and attributes.

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

有關更多功能的完整範例，可以參考 <a href="https://fastapi.tiangolo.com/tutorial/">教學 - 使用者指南</a>。

**劇透警告**： 教學 - 使用者指南內容有：

- 對來自不同地方的**參數**進行宣告：像是 **headers**, **cookies**, **form 表單**以及**上傳檔案**。
- 如何設定 **驗證限制** 像是 `maximum_length` or `regex`。
- 簡單且非常容易使用的 **<abbr title="也被稱為元件、資源、提供者、服務或是注入">依賴注入</abbr>** 系統。
- 安全性和身份驗證，包含提供支援 **OAuth2**、**JWT tokens** 和 **HTTP Basic** 驗證。

		return err
	}
	buf := bufio.NewReader(rs)

	// The count of files inside a zip is truncated to fit in a uint16.
	// Gloss over this by reading headers until we encounter
	// a bad one, and then only report an ErrFormat or UnexpectedEOF if
	// the file count modulo 65536 is incorrect.
	for {
		f := &File{zip: r, zipr: rdr}
		err = readDirectoryHeader(f, buf)

		Hidden: true,
	},
	cli.DurationFlag{
		Name:   "read-header-timeout",
		Value:  xhttp.DefaultReadHeaderTimeout,
		Usage:  "read header timeout is the amount of time allowed to read request headers",
		EnvVar: "MINIO_READ_HEADER_TIMEOUT",
		Hidden: true,
	},
	cli.DurationFlag{
		Name:   "conn-user-timeout",
		Usage:  "custom TCP_USER_TIMEOUT for socket buffers",
		Hidden: true,

		var synchronous bool
		if tgt != nil {
			synchronous = tgt.replicateSync
		}
		dsc.Set(newReplicateTargetDecision(tgtArn, replicate, synchronous))
	}
	return dsc
}

// Standard headers that needs to be extracted from User metadata.
var standardHeaders = []string{
	xhttp.ContentType,
	xhttp.CacheControl,
	xhttp.ContentEncoding,
	xhttp.ContentLanguage,
	xhttp.ContentDisposition,