setExclude; break;
                                    case 'dnscrypt/custom-cloaking-rules.txt': content = dnscryptCustom; break;
                                }
                                textarea.value = content;
                            }
                        });
                        Object.keys(fileContents).forEach(path => {
                            const textarea = fileContents[path];
                            const counter = textarea.parentElement.querySelector('.line-counter');