feat(renderer): align browser locale with the proxy exit country - #511
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When a request pins a residential exit country, the chrome_proxy tier still announced a US browser: Accept-Language en-US, navigator.languages en-US, and a UTC clock. An IP/locale mismatch is a stronger bot signal than a flagged IP on its own, so the explicit country parameter was working against itself. A country table in crw_renderer::locale maps the pinned country to an Accept-Language and an IANA timezone. On the tier whose egress actually leaves from that country (the one that composes a country-suffixed proxy login) the session now sets acceptLanguage on Network.setUserAgentOverride, an Emulation timezone override, an Emulation locale override, and the stealth script's navigator.languages. A caller-supplied Accept-Language wins over every language signal; the clock still follows the exit country. With no country, or on any other tier, every path is byte-identical to before. ref #385
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What changed
crw_renderer::locale: a 32-row country table (ISO alpha-2, plus aukalias for GB) mapping to anAccept-Languageand an IANA timezone.chrome_proxy), and only when no per-request proxy overrides that egress, the CDP session now setsacceptLanguageonNetwork.setUserAgentOverride(plain tag form, Chromium adds the weights),Emulation.setTimezoneOverride,Emulation.setLocaleOverride, and the stealth script'snavigator.languages.Accept-Languagewins over every language signal; the clock still follows the exit country.Emulationoverrides are logged at debug with the method name.What did not change
countryparameter's precedence and the proxy credential composition are untouched.Verification
cargo test -p crw-renderer --features cdp: 943 passed (933 existing + 10 new).country.Measurement for the rest of the issue
Over 806 blocked requests in three days of production traces, confirmed geo-block signatures were 0.87% (all one host), and a ccTLD prior was wrong 97% of the time. Phases 1 to 3 of the issue are not worth building; details on the issue.
ref #385