Fix link buttons not working on Firefox

[tusbar]

Fix #639

[codecov-io]

Codecov Report

Merging #641 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master    #641      +/-   ##
=========================================
- Coverage    4.93%   4.93%   -0.01%     
=========================================
  Files         111     111              
  Lines        1478    1480       +2     
=========================================
  Hits           73      73              
- Misses       1405    1407       +2

Impacted Files	Coverage Δ
components/button.js	0% <0%> (ø)	⬆️

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