default boolean isHtmlMimetypeForCache(final String mimetype) {
        final String[] mimetypes = getCrawlerDocumentCacheHtmlMimetypes().split(",");
        if (mimetypes.length == 1 && StringUtil.isBlank(mimetypes[0])) {
            return true;
        }
        return stream(mimetypes).get(stream -> stream.anyMatch(s -> s.equalsIgnoreCase(mimetype)));
    }

    String getCrawlerDocumentCacheSupportedMimetypes();

    /** The key of the configuration. e.g. label */
    String INDEX_FIELD_LABEL = "index.field.label";

    /** The key of the configuration. e.g. mimetype */
    String INDEX_FIELD_MIMETYPE = "index.field.mimetype";

    /** The key of the configuration. e.g. parent_id */
    String INDEX_FIELD_parent_id = "index.field.parent_id";

    /** The key of the configuration. e.g. important_content */