Chrome Flags Reference

--ip-address-space-overrides

What does --ip-address-space-overrides do?

Specifies manual overrides to the IP endpoint -> IP address space mapping. This allows running local tests against "public" and "local" IP addresses. This switch is specified as a comma-separated list of overrides. Each override is an equals-separated "<endpoint|ip-range>=<address space>" pair. Grammar, in pseudo-BNF format: switch := override-list override-list := override “,” override-list | <nil> override := (ip-endpoint | ip_range) “=” address-space address-space := “public” | “private” | “local” | "loopback" ip-endpoint := ip-address ":" port ip-address := see `net::ParseURLHostnameToAddress()` for details port := integer in the [0-65535] range ip-range := ip-address "/" bitmask bitmask := integer in the [0-128] range Any invalid entries in the comma-separated list are ignored. If the port specified is 0, all ports for the given ip-address will be overridden. See also the design doc: https://docs.google.com/document/d/1-umCGylIOuSG02k9KGDwKayt3bzBXtGwVlCQHHkIcnQ/edit# And the Web Platform Test RFC #72 behind it: https://github.com/web-platform-tests/rfcs/blob/master/rfcs/address_space_overrides.md Note that since the doc and the RFC were written, the address space names have changed slightly due to Local Network Access (LNA) replacing Private Network Access (PNA).

Usage

chrome --ip-address-space-overrides

const browser = await puppeteer.launch({
  args: ['--ip-address-space-overrides']
});

const browser = await chromium.launch({
  args: ['--ip-address-space-overrides']
});

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument('--ip-address-space-overrides')

driver = webdriver.Chrome(options=options)