try (BufferedReader buffer = new BufferedReader(new InputStreamReader(headerCssUrl.openStream(), UTF_8))) {
headerCss = buffer.lines().collect(Collectors.joining("\n"));
} catch (IOException e) {
try (BufferedReader buffer = new BufferedReader(new InputStreamReader(headerCssUrl.openStream(), UTF_8))) {
headerCss = buffer.lines().collect(Collectors.joining("\n"));
} catch (IOException e) {