var typeLabel = getFileTypeLabel(source.url, source.mimetype);

            html += '<li>' +
                '<a href="' + escapeHtml(navigationUrl) + '" class="source-card" target="_blank" rel="noopener noreferrer">' +
                    '<span class="source-index">' + (i + 1) + '</span>' +
                    '<div class="source-info">' +
                        '<span class="source-title">' + escapeHtml(title) + '</span>' +

    /** The key of the configuration. e.g. Referrer-Policy:strict-origin-when-cross-origin */
    String API_JSON_RESPONSE_HEADERS = "api.json.response.headers";

    /** The key of the configuration. e.g. false */
    String API_JSON_RESPONSE_EXCEPTION_INCLUDED = "api.json.response.exception.included";

    /** The key of the configuration. e.g. Referrer-Policy:strict-origin-when-cross-origin */

api.search.scroll=false
# Headers for API JSON response.
api.json.response.headers=Referrer-Policy:strict-origin-when-cross-origin
# Whether to include exceptions in API JSON response.
api.json.response.exception.included=false
# Headers for API GSA response.
api.gsa.response.headers=Referrer-Policy:strict-origin-when-cross-origin
# Whether to include exceptions in API GSA response.