Test of uncontrolled page doing a fetch, which currently hits the sw.

This fails the test, as it should.

BUG=417351

Review URL: https://codereview.chromium.org/600843003

git-svn-id: svn://svn.chromium.org/blink/trunk@183015 bbb929c8-8fbe-4397-9dbb-9b2b20218538