WordPress首页报404 Not Found且异常重定向丢失8080端口怎么办

问题场景 #

• 每次点击后台侧栏底部的首页按钮时，页面都会跳转至404 Not Found报错页，相关参考截图包括：
  • WordPress后台仪表盘截图
  • 404报错页面截图
• 已观察到的异常现象：站点会自动触发重定向，移除访问URL中携带的8080端口。目前已在phpMyAdmin中修改wp_options表的site_url、home_url字段，将值设置为http://localhost:8080/wordpress，但问题仍未解决，暂未定位到触发原因。

日志排查记录 #

点击首页按钮后，查看浏览器控制台日志，可观察到完整的两步跳转链路：

1. 首次发起对http://localhost:8080/wordpress/的GET请求，收到由WordPress触发的301永久重定向响应，重定向目标地址为http://localhost/wordpress/，对应日志内容：

   Request URL: http://localhost:8080/wordpress/
   Request Method: GET
   Status Code: 301 Moved Permanently (from disk cache)
   Remote Address: [::1]:8080
   Referrer Policy: strict-origin-when-cross-origin
   Content-Length: 0
   Content-Type: text/html; charset=UTF-8
   Date: Wed, 03 Feb 2021 17:40:28 GMT
   Location: http://localhost/wordpress/
   Server: Apache/2.4.46 (Win64) OpenSSL/1.1.1h PHP/7.4.13
   X-Powered-By: PHP/7.4.13
   X-Redirect-By: WordPress
   Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
   Accept-Encoding: gzip, deflate, br
   Accept-Language: en-ES,en-US;q=0.9,en;q=0.8
   Connection: keep-alive
   Cookie: wp-settings-1=mfold%3Do; wp-settings-time-1=1612439758; wordpress_test_cookie=WP%20Cookie%20check; wordpress_logged_in_7d02bf5d4e081af2908123233e7fb2e7=Kwsswart%7C1612681149%7C3lzaDUQayIVeJSHGTZiiOEF0IPOnAvdyMTTlSq6SP7Z%7C66c2a42cd2b27d342bd5a234fb1276e73122a06eb9761a76f336f26c5cea485e
   Host: localhost
   Referer: http://localhost:8080/
   sec-ch-ua: "Chromium";v="88", "Google Chrome";v="88", ";Not A Brand";v="99"
   sec-ch-ua-mobile: ?0
   Sec-Fetch-Dest: document
   Sec-Fetch-Mode: navigate
   Sec-Fetch-Site: same-site
   Sec-Fetch-User: ?1
   Upgrade-Insecure-Requests: 1
   User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36
   

2. 跟随301重定向发起对http://localhost/wordpress/的最终请求，收到404 Not Found响应，对应日志内容：

   Request URL: http://localhost/wordpress/
   Request Method: GET
   Status Code: 404 Not Found
   Remote Address: [::1]:80
   Referrer Policy: strict-origin-when-cross-origin
   Connection: Keep-Alive
   Content-Length: 196
   Content-Type: text/html; charset=iso-8859-1
   Date: Fri, 05 Feb 2021 06:59:33 GMT
   Keep-Alive: timeout=5, max=100
   Server: Apache/2.4.46 (Win64) PHP/7.4.13
   Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
   Accept-Encoding: gzip, deflate, br
   Accept-Language: en-ES,en-US;q=0.9,en;q=0.8
   Connection: keep-alive
   Cookie: wp-settings-1=mfold%3Do; wp-settings-time-1=1612439758; wordpress_test_cookie=WP%20Cookie%20check; wordpress_logged_in_7d02bf5d4e081af2908123233e7fb2e7=Kwsswart%7C1612681149%7C3lzaDUQayIVeJSHGTZiiOEF0IPOnAvdyMTTlSq6SP7Z%7C66c2a42cd2b27d342bd5a234fb1276e73122a06eb9761a76f336f26c5cea485e
   Host: localhost
   Referer: http://localhost:8080/
   sec-ch-ua: "Chromium";v="88", "Google Chrome";v="88", ";Not A Brand";v="99"
   sec-ch-ua-mobile: ?0
   Sec-Fetch-Dest: document
   Sec-Fetch-Mode: navigate
   Sec-Fetch-Site: same-site
   Sec-Fetch-User: ?1
   Upgrade-Insecure-Requests: 1
   User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like
   

• 后台设置页参考截图：WordPress后台设置页面截图

内容的提问来源于stack exchange，提问作者Kwsswart_101