URL of public assets is wrong in built CSS files if assetsDir is set and base is './'

[Undefined100]

Describe the bug

当我将静态资源（图片，字体）放在public文件下时，打包之后，css文件中静态资源引用路径不对

Reproduction

Github Repo Link

System Info

System:
OS: macOS Mojave 10.14.6
CPU: (4) x64 Intel(R) Core(TM) i5-7267U CPU @ 3.10GHz
Memory: 986.89 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 14.16.0 - /usr/local/bin/node
Yarn: 1.22.4 - /usr/local/bin/yarn
npm: 6.14.11 - /usr/local/bin/npm
Browsers:
Chrome: 91.0.4472.77
Safari: 14.1
npmPackages:
vite: ^2.3.5 => 2.3.5

Used package manager:

Logs

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[javastation]

public 里的资源要以/开头，所以你应该 background-image: url('/static/img/logo.png'); base最好设置成绝对路径或者 URL，设置为"",在 dev 时会被替换为/,build 时则保持不变，base设置""可以看issues 1669

[Undefined100]

public 里的资源要以/开头，所以你应该 background-image: url('/static/img/logo.png'); base最好设置成绝对路径或者 URL，设置为"",在 dev 时会被替换为/,build 时则保持不变，base设置""可以看issues 1669

将base设置成'./'后，构建出来的css文件中的路径还是错误的，我代码已经上传了Github Repo Link，vue-cli中生成的路径都是正常的

[sodatea]

你这个用法有点太特殊了……
所以这个问题只会出现在 base: './' 并且用了 assetsDir 的情况下……

[sapphi-red]

After upgrading to 3.0.0-alpha.1, it worked. I assume #7644 has fixed this.