Fix responsive-loader detection throwing an error | Fixes #50

[mrroll]

[codecov-commenter]

Codecov Report

Merging #201 into master will not change coverage. The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #201   +/-   ##
=======================================
  Coverage   88.42%   88.42%           
=======================================
  Files          13       13           
  Lines         190      190           
  Branches       46       46           
=======================================
  Hits          168      168           
  Misses         16       16           
  Partials        6        6           

Impacted Files	Coverage Δ
lib/loaders/index.js	81.81% <0.00%> (ø)

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[bh]

Works fine!