Function handle404Error

zpr/zpr.ts:309–312

(proxyHost: string, failedProxies: string[])

    return true; // 表示遇到404错误
};

// 辅助函数：检查是否为超时错误
const isTimeoutError = (error: any): boolean => {
    return error.code === 'ECONNABORTED' || 
           error.message?.includes('timeout') ||
           error.message?.includes('canceled') ||
           error.message?.includes('cancelled') ||