css modules InjectStyles bug in ssr

[zhangyuang]

Version

15.9.8

Reproduction link

https://github.com/zhangyuang/vue-loader-ssr-bug.git

Steps to reproduce

yarn && npm start

What is expected?

this.$style can be read the exact value in server and client side。

What is actually happening?

In server side this.$style value is {default : val}
In client side this.$style value is exact value

---

By read the source code, vue-loader must be used with vue-style-loader to avoid the problem.But i needn't use vue-style-loader。Maybe vue-loader should fix the case by itself

[samiconductor]

Setting css-loader namedExport true solved a related problem for me.

UPD: Also found this option on mini css extract plugin esModules. Setting it to false did the trick and namedExport wasn't needed.

Hope that helps in case you're using either of those plugins.