Fix ssr v10

[David-Desmaisons]

Improvement on PR #723

[codecov-io]

Codecov Report

Merging #726 into master will increase coverage by 0.03%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #726      +/-   ##
==========================================
+ Coverage   92.66%   92.69%   +0.03%     
==========================================
  Files           2        2              
  Lines         218      219       +1     
  Branches       50       50              
==========================================
+ Hits          202      203       +1     
  Misses         15       15              
  Partials        1        1

Impacted Files	Coverage Δ
src/vuedraggable.js	92.15% <100%> (+0.03%)	⬆️

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