使用burp过程中出现一个不解的现象

GET /img/bd_logo1.png HTTP/1.1

Host: www.baidu.com

Connection: close

Pragma: no-cache

Cache-Control: no-cache

DNT: 1

Upgrade-Insecure-Requests: 1

User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

Sec-Fetch-User: ?1

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3

Sec-Fetch-Site: same-origin

Sec-Fetch-Mode: navigate

Accept-Encoding: gzip, deflate

Accept-Language: zh-CN,zh;q=0.9,en-GB;q=0.8,en;q=0.7

HTTP/1.1 301 Moved Permanently

Server: nginx/1.15.8

Date: Tue, 17 Dec 2019 02:00:49 GMT

Content-Type: text/html

Content-Length: 169

Connection: close

Location: https://www.baidu.com/img/bd_logo1.png



<html>

<head><title>301 Moved Permanently</title></head>

<body>

<center><h1>301 Moved Permanently</h1></center>

<hr><center>nginx/1.15.8</center>

</body>

</html>