fix:the true spelling and chain call of cors

[Ignorant-lxf]

fix #35

[codecov-commenter]

Codecov Report

Merging #36 (6e743c4) into main (2d626c6) will decrease coverage by 0.67%.
The diff coverage is 6.25%.

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@@            Coverage Diff             @@
##             main      #36      +/-   ##
==========================================
- Coverage   35.22%   34.55%   -0.67%     
==========================================
  Files          12       12              
  Lines         775      790      +15     
==========================================
  Hits          273      273              
- Misses        455      470      +15     
  Partials       47       47              

Flag	Coverage Δ
go-1.19.x	34.55% <6.25%> (-0.67%)	⬇️
macos-latest	34.55% <6.25%> (-0.67%)	⬇️
ubuntu-latest	34.55% <6.25%> (-0.67%)	⬇️
windows-latest	34.55% <6.25%> (-0.67%)	⬇️

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Files	Coverage Δ
middleware/cors/cors.go	58.62% <6.25%> (-12.22%)	⬇️

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