Ensure cookies from incoming request are passed to Grover via Middleware

[braindeaf]

I came across this situation this week, where I was loading a page that had javascript based calendar which loaded additional resources. While the page loaded the JSON that populated the calendar did not because the AJAX calls to fetch data did not have the cookies it needed.

This just reuses the example of re-sending cookies, but it puts it into the middleware.

[abrom]

Seems like a reasonable idea @braindeaf however I'm not super keen on rolling a custom cookie parser. Suggest look at using something like Rack::Utils.parse_cookies_header as used by Rack::Request. ie

cookies = Rack::Utils.parse_cookies_header(env[Rack::HTTP_COOKIE]).map do |key, value|
  { name: key, value: value, domain: env[Rack::HTTP_HOST] }
end

[braindeaf]

Noted, will make appropriate changes :)

[abrom]

Change looks fine, although the build is failing because of the middleware file length being too long.

As a temporary measure, update https://github.com/Studiosity/grover/blob/main/.rubocop.yml#L26 to 140

Also, can you please add an entry in the unreleased section of CHANGELOG.md

[braindeaf]

Done. I'm getting some rubocop errors with bundled Rubocop 0.81. I didn't want to go and upgrade it in this pull, but happy to if need be.

Error: unrecognized cop Layout/SpaceAroundMethodCallOperator found in .rubocop.yml, unrecognized cop Style/ExponentialNotation found in .rubocop.yml

[abrom]

No worries, I'll look at those in a separate PR

[abrom]

FYI I've released this in 0.12.2. Thanks for the PR 👍