Webpack4, no longer supports extract-text-webpack-plugin

experienced webpack4.1.0, today and found that extract-text-webpack-plugin is no longer supported.
what method should be used to extract the css file separately? Another problem with
is that when I was looking at an open source project packaged in webpack, I found that it introduced css

into its html.

<link type="text/css" rel="stylesheet" href="blob:null/e83446f1-423b-40a8-a91a-d885bde94722">

what is the meaning of the content in that href, and what plug-in is it done with?
and I didn"t find the css file it generated in the file, only the scss file in the source code.
No answer can be found in the actual search. Please give me some advice. Thank you in advance.

Webpack

Feb.28,2021

reason: extract-text-webpack-plugin the latest version is 3.0.2 , which is not adapted to the webpack 4 version

solution: use 4.0 beta version, npm install-- save-dev extract-text-webpack-plugin@next

The plug-in

extract-text-webpack-plugin is still supported and used as before, except that you need to upgrade to the corresponding version ^ 4.0.0

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