If "*" value is present in the list, all origins will be allowed.

[billyplus]

According to godoc

// AllowedOrigins is a list of origins a cross-domain request can be executed from.
// If the special "*" value is present in the list, all origins will be allowed.

This feature is missing.
So this pull request is about to fix it.

[codecov-io]

Codecov Report

Merging #47 into master will increase coverage by 0.12%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #47      +/-   ##
==========================================
+ Coverage   92.89%   93.02%   +0.12%     
==========================================
  Files           3        3              
  Lines         169      172       +3     
==========================================
+ Hits          157      160       +3     
  Misses         11       11              
  Partials        1        1

Impacted Files	Coverage Δ
cors.go	81.53% <100%> (+0.89%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 488de3e...51fe3ba. Read the comment docs.