Wrong relative path for SASS background-image url in 1.12 on Windows

[pocesar]

🐛 bug report

Parcel is incorrectly renaming the paths of background: url entries. works with 1.11, the path has no slashes

• Image path: /images/hero-homepage-banner.jpg

• /src/pages/landing.tsx

import React from 'react'
import './landing.scss'

// ...

• /src/pages/landing.scss

.layout-full {
   background: url('../../images/hero-homepage-banner.jpg') no-repeat;
   background-size: cover;
}

🎛 Configuration (.babelrc, package.json, cli command)

parcel serve ./src/index.html --https --port 443 --log-level 3 --public-url / --no-hmr

🤔 Expected Behavior

Generated css file contains a path like url(/hero-homepage-banner.975cc93d.jpg)

😯 Current Behavior

Generated CSS is:

.ant-layout.layout-full {
  background: url(..\hero-homepage-banner.975cc93d.jpg) no-repeat ;
  background-size: cover;
}

💁 Possible Solution

🔦 Context

Impossible to use

💻 Code Sample

🌍 Your Environment

Software	Version(s)
Parcel	1.12.0
Node	11.10.0
npm/Yarn	6.9.0
Operating System	Windows 10 x64

[mischnic]

Fixed by #2740