</jsp:include>

    <div class="content-wrapper position-relative">
        <iframe class="w-100 h-100 position-absolute" frameborder="0"
                src="<%=request.getContextPath()%>${serverPath}<%= response.encodeURL("/_plugin/kopf/") %>"
                seamless></iframe>
    </div>

    <jsp:include page="/WEB-INF/view/common/admin/footer.jsp"></jsp:include>
</div>

            }
        } else {
            hash = StringUtil.EMPTY;
        }

        if (!isFileSystemPath(targetUrl)) {
            return HtmlResponse.fromRedirectPathAsIs(DocumentUtil.encodeUrl(targetUrl + hash));
        }
        if (!fessConfig.isSearchFileProxyEnabled()) {
            return HtmlResponse.fromRedirectPathAsIs(targetUrl + hash);
        }

        if (FUNCTION_ENCODEURL_MATCHER.equals(replacement)) {
            return (u, m) -> DocumentUtil.encodeUrl(u);
        }
        if (!replacement.startsWith(GROOVY_MATCHER)) {
            return (u, m) -> m.replaceAll(replacement);
        }
        final String template = replacement.substring(GROOVY_MATCHER.length());

     *
     * @param url the URL to encode
     * @return the encoded URL with non-URL-safe characters properly encoded
     */
    public static String encodeUrl(final String url) {
        final String enc = LaRequestUtil.getOptionalRequest()
                .filter(req -> req.getCharacterEncoding() != null)
                .map(HttpServletRequest::getCharacterEncoding)