[15.0.0-beta.5] Does not work with html-webpack-plugin

[sqal]

Version

15.0.0-beta.5

Reproduction link

https://github.com/sqal/vue-loader-issue-repro

Steps to reproduce

• clone repository
• run npm run build

What is expected?

Webpack should compile

What is actually happening?

Webpack won't compile with html-webpack-plugin

[yyx990803]

Released in beta 6