Validation errors when admin URL is different from site URL

[ryanwelcher]

Describe the bug
In testing a zip, I discovered if WordPress installed in a subdirectory, the request made to authenticate fails.

Steps to Reproduce

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

Screenshots

Environment information

• Device:
• OS:
• Browser and version:
• WordPress version:

• Plugins and version:
• Theme and version:

• Site Health Info:

Additional context

[ryanwelcher]

Assigning to myself to flesh this out further.

[dinhtungdu]

I can't reproduce this issue. Look like it was fixed by 92f03d0