I updated the CentralNotice banner proxy RfC [1] to reflect what was discussed last night.

If it all looks good, I've attempted to evaluate some of the pros / cons of using Node vs Varnish as the banner server -- and I'd like some feedback on what technology I should use.

[1] https://www.mediawiki.org/wiki/Requests_for_comment/Caching_Overhaul_-_Front...

~Matt Walker Wikimedia Foundation Fundraising Technology Team