configured webpack4, page error window is not defined when scss file is introduced in js
the relevant loader code is as follows:
{
test: /\.(css|scss)$/,
use: [
"style-loader",
"css-loader",
"sass-loader"
]
},
{
test: /\.(png|svg|jpg|gif)$/,
use: [
"file-loader"
]
}comment out style-loader, the page will not report an error, but there is no corresponding style
style-loader inserts styles into the dom, probably using a window object.
are you doing server-side rendering? If so, this error will be reported because the server does not have a window object.
the solution is to use the isomorphic-style-loader package
{
test: /\.(css|scss)$/,
use: [
'isomorphic-style-loader' ,
'css-loader',
'sass-loader'
]
}because of the conflict between style-loader and mini-css-extract-plugin, remove style-loader
= original answer =
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