At the moment, Microsoft Office and related casks fail audit due to
failure to fetch a product homepage from the main Microsoft site
(https://www.microsoft.com/) served by Akamai CDN.
The failure is severe and weird: no status code is received as the
connection is reset.
The analysis revealed the issue is linked to `User-Agent` and
`Accept-Language` headers parsing. Homebrew uses involved user agent
strings and has language hardcoded as `en`.
The simplest workaround is to use a simple user agent string when checking
homepage availability if the cask is in an audit exceptions list.
Merging this would fix Microsoft Office updates (including
https://github.com/Homebrew/homebrew-cask/pull/162671)
The main class you should look at is the {Formula} class (and classes linked from there). That's the class that's used to create Homebrew formulae (i.e. package descriptions). Assume anything else you stumble upon is private.
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