Shared Storage: Add web test for fetch request in sandboxed iframe
This test documents the current behavior of shared storage via
response header by way of an fetch request. We will revise the test
if we update the behavior.
Bug: 339172115
Change-Id: Iafa6af54b45b90558f0d84bf62fe4e124f4feaa1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5521798
Reviewed-by: Yao Xiao yaoxia@chromium.org
Commit-Queue: Cammie Smith Barnes cammie@chromium.org
Cr-Commit-Position: refs/heads/main@{#1298203}