umi.css not found

[teamco]

Description of the issue

After starting the development environment and accessing the page, the umi.css seems like not available in a dist folder, and asset-manifest.json

console debug error:

Refused to apply style from 'http://localhost:8003/umi.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.

./dist folder

"@umijs/max": "^4.3.27"

Added repo with reproducing: https://github.com/teamco/mako

Reference: umijs/mako#1645 (comment)