1620708 - cookies/samesite/iframe-reload.https.html.ini WPT FAIL with Fission

Status: RESOLVED DUPLICATE of bug 1594529

(Core :: Networking: Cookies, defect, P2)

Description

[Chris Peterson [:cpeterson]]

https://searchfox.org/mozilla-central/source/testing/web-platform/meta/cookies/samesite/iframe-reload.https.html.ini

if fission: FAIL
if fission: FAIL

Comment 1

[Michal Novotny [:michal]]

Valentin, can you please have a look at this bug?

Comment 2

[Chris Peterson [:cpeterson]]

The DOM Fission team is relying on feature teams to debug and fix Fission failures in their tests. If the failure looks like a bug in Fission's DOM or IPC changes, you can send the bug back to me.

We're hoping to enable Fission for a subset of Nightly users in early Q3, so we would like WPT tests to be green for Fission by end of Q2. Whether a particular test failure actually blocks shipping Fission is up to the discretion of the feature team. You all would know better than the DOM Fission which test failures are most important.

You can enable Fission when running WPT tests locally using mach wpt --enable-fission.

Comment 3

[Valentin Gosu [:valentin] (he/him)]

I am not totally sure what to think about this test.
That particular test show up as failing on all browsers: https://wpt.fyi/results/cookies/samesite/iframe-reload.https.html?label=master&aligned
I don't completely understand how it works. Maybe the test is simply incompatible with fission?
Andrea, you added the expected-fail in bug 1615389. Do you remember if that was the case?

Comment 4

[Andrea Marchesini [:baku]]

The reason why this test fails is that the iframe is loaded with the wrong content-type (DOCUMENT instead of SUBDOCUMENT).
This bug is a dup of bug 1594529.