[I] [Question] 下载文件重复添加transfer-encoding响应头，报502错误 [shenyu]</span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=notifications@shenyu.apache.org&q=from:%22via+GitHub%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">via GitHub</span></span></a></span> <span class="date"><a href="/search?l=notifications@shenyu.apache.org&q=date:20241118" rel="nofollow">Mon, 18 Nov 2024 07:58:03 -0800</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre> DongPoJuShi opened a new issue, #5788: URL: <a rel="nofollow" href="https://github.com/apache/shenyu/issues/5788">https://github.com/apache/shenyu/issues/5788</a></pre><pre> ### Question 我有一个文件下载接口，文件无法提前获取大小， 使用curl -i 查看响应头信息，会添加Transfer-Encoding头 curl -i <a rel="nofollow" href="http://127.0.0.1:8081/sso/file/download">http://127.0.0.1:8081/sso/file/download</a> HTTP/1.1 200 OK transfer-encoding: chunked Set-Cookie: JSESSIONID=586720F3737BB4AC4151B8CF05F01BEF; Path=/; HttpOnly Content-Type: application/octet-stream Transfer-Encoding: chunked Date: Fri, 15 Nov 2024 05:53:43 GMT 访问经过网关的接口，会再添加transfer-encoding头 url -i <a rel="nofollow" href="http://127.0.0.1:8080/sso/file/download">http://127.0.0.1:8080/sso/file/download</a> HTTP/1.1 200 OK transfer-encoding: chunked Set-Cookie: JSESSIONID=3286922940F3613FF9F17EFB5F3E117C; Path=/; HttpOnly Content-Type: application/octet-stream Transfer-Encoding: chunked Date: Fri, 15 Nov 2024 05:55:43 GMT 调用接口<a rel="nofollow" href="http://127.0.0.1/sso/file/download，nginx报502错误">http://127.0.0.1/sso/file/download，nginx报502错误</a> 2024/11/15 05:44:57 [error] 20#20: *1 upstream sent duplicate header line: "Transfer-Encoding: chunked", previous value: "transfer-encoding: chunked" while reading response header from upstream 请问是我哪里设置的有问题吗，该如何处理？ 网关设置如下： ![image](<a rel="nofollow" href="https://github.com/user-attachments/assets/ade37a82-bffa-4383-a695-526f7f03ea77">https://github.com/user-attachments/assets/ade37a82-bffa-4383-a695-526f7f03ea77</a>) ![image](<a rel="nofollow" href="https://github.com/user-attachments/assets/73bd496d-c01a-4257-928f-0f7555b8682c">https://github.com/user-attachments/assets/73bd496d-c01a-4257-928f-0f7555b8682c</a>) nginx版本为1.27.2 设置如下： location / { proxy_pass <a rel="nofollow" href="http://127.0.0.1:8080">http://127.0.0.1:8080</a>; proxy_set_header X-Forward-For $proxy_add_x_forwarded_for; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Upgrade $http_upgrade; } -- This is an automated message from the Apache Git Service. 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