Fix windows get empty files

[fyangstudio]

Fix windows get empty files

[codecov-commenter]

Codecov Report

Merging #937 (c571f33) into release/1.4.0 (b561b06) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff               @@
##           release/1.4.0     #937   +/-   ##
==============================================
  Coverage          57.14%   57.14%           
==============================================
  Files                  1        1           
  Lines                 70       70           
  Branches              18       18           
==============================================
  Hits                  40       40           
  Misses                30       30           

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