fix: add CORS to config, improve test

[fetsorn]

Hotfix for #516, I've corrected the test case and added CORS to the default config.

• prepend c.HTTP.PublicURL to c.HTTP.CORS.AllowedOrigins in the Config.Validate() function.
• make the testscript case more readable
• hint a custom allowed origin in the config
• enable PUT and OPTIONS in default config

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.77%. Comparing base (b06b555) to head (4519cba).
Report is 146 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #654      +/-   ##
==========================================
- Coverage   51.96%   51.77%   -0.19%     
==========================================
  Files         157      159       +2     
  Lines       13454    13572     +118     
==========================================
+ Hits         6991     7027      +36     
- Misses       5891     5973      +82     
  Partials      572      572              

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[aymanbagabas]

Thank you for the changes @fetsorn! I will merge once the tests pass

[fetsorn]

I also added several allowed headers needed for preflight requests

[fetsorn]

readded the changes since they were reverted on main. all checks but lint pass, and lint fails outside cors

[fetsorn]

Is merging this still blocked by something or just waiting in queue?

[aymanbagabas]

Is merging this still blocked by something or just waiting in queue?

Hi @fetsorn! Thank you again for working on this major feature. Sorry for the delay, but I've been working on #678 and trying to get Soft Serve to use the new v2 stack. I thought CORS is a good feature to pair with v2 in the next release. Once I get #678 merged, very soon, I will merge this one and push a new v0.9.0 Soft Serve release 🙂