[FedCM] Make nocors test work
Change the test to use the alt domain so that we actually have a
cross-site request.
Bug: 40284123
Change-Id: I62c3df320921f919fe2e1ab04112a5a838f116cc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5716756
Auto-Submit: Christian Biesinger cbiesinger@chromium.org
Reviewed-by: Nicolás Peña npm@chromium.org
Commit-Queue: Christian Biesinger cbiesinger@chromium.org
Cr-Commit-Position: refs/heads/main@{#1329564}