Add external wpt covering same-site subresources redirected to x-site
Bug: 370995015
Change-Id: I802c294b4e80501465b7f263fc055cb594290f20
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5905045
Reviewed-by: Steven Bingler bingler@chromium.org
Auto-Submit: Aaron Selya selya@google.com
Commit-Queue: Steven Bingler bingler@chromium.org
Cr-Commit-Position: refs/heads/main@{#1364062}