One cannot have relative assets

[elevatebart]

Version

3.0.0-rc.12

Node and OS info

Windows 10 yarn 1.7.0

Steps to reproduce

vue create --default test-app

Then edit vue.config.js and set baseUrl as "_Inc/vue/".
build

What is expected?

The base url of the website is my.company.com/mysite/ where mysite is going to be an instance of the software.
When running the app, I would expect the assets to be called with the same tools as webpack does, relatively.

my.company.com/mysite/_inc/vue/js/chunk-vendors.456123.js

What is actually happening?

Instead the app looks for files at the root route (pun intended).
my.company.com/_inc/vue/js/chunk-vendors.456123.js

Therefore it completely ignores the subroute and sends a 404.

---

This issue is connected to #900 and has already been commented on. @lsorber & @stofte, thank you for reporting it.

Now that the output.publicPath in webpackConfig is not an option anymore (blocking error in 3.0.0), I have no way around this.
Should I look for another? make a PR ?

Thank you in advance,
Great work on the vue cli