Fix failing appveyor test

[DeMoorJasper]

Fixes a failing appveyor html test

[codecov-io]

Codecov Report

Merging #1431 into master will increase coverage by 3.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1431      +/-   ##
==========================================
+ Coverage   87.31%   90.32%   +3.01%     
==========================================
  Files          80       80              
  Lines        3800     6183    +2383     
==========================================
+ Hits         3318     5585    +2267     
- Misses        482      598     +116

Impacted Files	Coverage Δ
src/assets/WebManifestAsset.js	59.18% <0%> (-19.39%)	⬇️
src/Logger.js	83.59% <0%> (-13.25%)	⬇️
src/packagers/CSSPackager.js	87.87% <0%> (-12.13%)	⬇️
src/assets/JSONAsset.js	84.61% <0%> (-8.72%)	⬇️
src/utils/getRootDir.js	86.11% <0%> (-8.34%)	⬇️
src/assets/VueAsset.js	80.72% <0%> (-7.06%)	⬇️
src/HMRServer.js	85% <0%> (-6.67%)	⬇️
src/Bundle.js	93.05% <0%> (-6.2%)	⬇️
src/packagers/JSPackager.js	82.74% <0%> (-5.83%)	⬇️
src/Pipeline.js	93.06% <0%> (-4.89%)	⬇️
... and 65 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1614918...471b302. Read the comment docs.