function isGzipBuffer(arrayBuffer) {
    if (!arrayBuffer || arrayBuffer.byteLength < 3) {
        return false;
    }
    
    const view = new Uint8Array(arrayBuffer);
    const header = new DataView(arrayBuffer);
    
    // 检查magic number
    if (view[0] !== 0x1F || view[1] !== 0x8B) {
        return false;
    }
    
    // 检查压缩方法（应该是DEFLATE，即0x08）
    const compressionMethod = view[2];
    if (compressionMethod !== 0x08) {
        console.warn('Gzip found but with non-DEFLATE compression method:', compressionMethod);
        return false;
    }
    
    return true;
}

javascript
async function decompressGzipWithBlob(compressedArrayBuffer) {
  try {
    // 创建解压缩流
    const decompressionStream = new DecompressionStream('gzip');
    
    // 创建 Blob 并获取可读流
    const blob = new Blob([compressedArrayBuffer]);
    const readableStream = blob.stream();
    
    // 管道传输
    const decompressedStream = readableStream.pipeThrough(decompressionStream);
    
    // 转换为响应并获取数据
    const response = new Response(decompressedStream);
    const result = await response.arrayBuffer();
    
    return result;
  } catch (error) {
    console.error('解压失败:', error);
    throw error;
  }
}