</la:option>
			</c:if>
		</la:select>
	</fieldset>
	<fieldset class="form-group">
		<legend><la:message key="labels.index_lang" /></legend>
		<label for="contentLang"><la:message key="labels.index_lang" /></label>
		<la:select property="lang" styleId="langSearchOption" multiple="true"
			styleClass="form-control">
			<c:forEach var="item" items="${langItems}">

				</la:option>
			</c:if>
		</la:select>
	</fieldset>
	<fieldset class="form-group">
		<legend><la:message key="labels.index_lang" /></legend>
		<label for="contentLang"><la:message key="labels.index_lang" /></label>
		<la:select property="lang" styleId="langSearchOption" multiple="true"
			styleClass="form-control">
			<c:forEach var="item" items="${langItems}">

							</la:option>
						</c:if>
					</la:select>
				</div>
				<div class="col-lg-4 d-none d-lg-flex align-items-center">
				</div>
			</div>
			<div class="form-group row">
				<label for="contentLang" class="col-lg-3 col-md-4 col-sm-5 col-12 col-form-label"><la:message
						key="labels.index_lang"
					/></label>
				<div class="col-lg-5 col-md-8 col-sm-7 col-xs-6">

							</la:option>
						</c:if>
					</la:select>
				</div>
				<div class="col-lg-4 d-none d-lg-flex align-items-center">
				</div>
			</div>
			<div class="form-group row">
				<label for="contentLang" class="col-lg-3 col-md-4 col-sm-5 col-12 col-form-label"><la:message
						key="labels.index_lang"
					/></label>
				<div class="col-lg-5 col-md-8 col-sm-7 col-xs-6">

		return err
	}

	// Set content length.
	w.Header().Set(xhttp.ContentLength, strconv.FormatInt(rangeLen, 10))
	if rs != nil {
		contentRange := fmt.Sprintf("bytes %d-%d/%d", start, start+rangeLen-1, totalObjectSize)
		w.Header().Set(xhttp.ContentRange, contentRange)
	}

	// Set the relevant version ID as part of the response header.
	if objInfo.VersionID != "" && objInfo.VersionID != nullVersionID {

						}

						// Set content length.
						w.Header().Set(xhttp.ContentLength, strconv.FormatInt(rangeLen, 10))
						if rs != nil {
							contentRange := fmt.Sprintf("bytes %d-%d/%d", start, start+rangeLen-1, ci.Size)
							w.Header().Set(xhttp.ContentRange, contentRange)
						}

						io.Copy(w, bytes.NewReader(ci.Data))
						return
					}
					if ci.StatusCode == http.StatusPreconditionFailed {

func corsHandler(handler http.Handler) http.Handler {
	commonS3Headers := []string{
		xhttp.Date,
		xhttp.ETag,
		xhttp.ServerInfo,
		xhttp.Connection,
		xhttp.AcceptRanges,
		xhttp.ContentRange,
		xhttp.ContentEncoding,
		xhttp.ContentLength,
		xhttp.ContentType,
		xhttp.ContentDisposition,
		xhttp.LastModified,
		xhttp.ContentLanguage,
		xhttp.CacheControl,
		xhttp.RetryAfter,

	ContentMD5         = "Content-Md5"
	ContentEncoding    = "Content-Encoding"
	Expires            = "Expires"
	ContentLength      = "Content-Length"
	ContentLanguage    = "Content-Language"
	ContentRange       = "Content-Range"
	Connection         = "Connection"
	AcceptRanges       = "Accept-Ranges"
	AmzBucketRegion    = "X-Amz-Bucket-Region"
	ServerInfo         = "Server"
	RetryAfter         = "Retry-After"

var contentRangeRegexp = regexp.MustCompile(`bytes ([0-9]+)-([0-9]+)/([0-9]+|\\*)`)

// parse size from content-range header
func parseSizeFromContentRange(h http.Header) (sz int64, err error) {
	cr := h.Get(xhttp.ContentRange)
	if cr == "" {
		return sz, fmt.Errorf("Content-Range not set")
	}
	parts := contentRangeRegexp.FindStringSubmatch(cr)
	if len(parts) != 4 {
		return sz, fmt.Errorf("invalid Content-Range header %s", cr)
	}