Hiya, On 11/03/2019 09:25, Neil Cook wrote: > What other resolvers would those be? Firefox only uses Cloudflare at > the moment. You can manually change that if you know about a > different DoH server. When I briefly played with FF nightly and DoH, it was using both the system resolver and CF. I had to muck about some to get it to actually use the CF results because of entries in the system resolver cache.
My point though was that the dichotomy in Vittorio's draft is too simple - I'd guess its likely that a browser, if doing DoH for real, would end up trying various DoH servers as well as the system resolver and would make possibly complex choices based on the queries, answers and metadata (e.g. speed) seen. And those choices could of course change as the browser s/w is updated (all that being in addition to the kind of user-driven config stuff Vittorio's draft mentions). Cheers, S.
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