配置nginx后,http可以访问,https却无法访问

一、背景:

前后端分离,前端:vue3,后端:flask

前端打包合并到后端后,需要将该项目部署到正式服务器,并为其配置域名。配置完成后,却出现了http能访问,https无法访问的问题,报错如下:

Mixed Content: The page at 'https://...' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://...'. This request has been blocked; the content must be served over HTTPS.

二、尝试

碰到这个问题的人不少,但是解决方法都类似,都是通过某种方法将http请求强制转成https请求。

第一种:

在页面中加入如下标签

第二种:

nginx配置如下语句

add_header Content-Security-Policy "upgrade-insecure-requests;connect-src *"

这两种方法我都尝试过了,它们的结果是一致的,但是并不理想,没有解决我的问题。通过这两种方法,我得到的结果是https可以访问了,但是http访问时又出现了另外的问题。

三、解决方案

最后,我终于找到了问题的真正所在。是因为前端请求后缺少斜杠。即将下面的请求url

 url: '/api/get_data

改为如下url

 url: '/api/get_data/

 是的,就是这么愚蠢,就是这么简单。

参考:https://www.it1352.com/202186.html

I just spent a good 4 hours trying to fix a similar problem. Here's what solved mine:

Summary: add a trailing '/' to your request

I found this post useful in fixing my problem. Basically, the server doesn't care if you send your request with a trailing '/' or not, because it internally routes to '/' if you don't add it. However, if the routing is happening internally (e.g. nginx passing the request to a local process), you get an http redirect which will make your request fail.

四、 结束语

记录学习之旅,与君共勉

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